matatabi
type: MusicGroup
genre: j-rap
popularity: 16
followers: 1166
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4b7d41c1a91949be73ca4ab473284c92a2988e18429e750f760a83db05ef0f69
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9c1d28a9-315b-4a4a-a974-571a78fc71dd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9c1d28a9-315b-4a4a-a974-571a78fc71dd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9c1d28a9-315b-4a4a-a974-571a78fc71dd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7d41c1a91949be73ca4ab473284c92a2988e18429e750f760a83db05ef0f69. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c1d28a9-315b-4a4a-a974-571a78fc71dd.json and https://artists.proofprofile.net/proofs/artist/9c1d28a9-315b-4a4a-a974-571a78fc71dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:44:49Z
album: LOOPER
  type: MusicAlbum
  date published: 2021-10-15
  track: God Doesn't Play Dice
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145930
    explicit: false
    by artist: CRAM
    by artist: matatabi
    in album: LOOPER
      type: MusicAlbum
      date published: 2021-10-15
    popularity: 2
    genre: japanese-underground-rap
    genre: japanese-beats
    isrc code: QZNWQ2155235
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T23:00:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x920ee9958ead06f2cdd5ff426d2c0553e16c107dc7526dcfc45cc5d3fac8ee9c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155235
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920ee9958ead06f2cdd5ff426d2c0553e16c107dc7526dcfc45cc5d3fac8ee9c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155235.
      date published: 2026-07-08T03:22:41Z
    audio: God Doesn't Play Dice
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 166.855
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.499
      additional property: Energy
        type: PropertyValue
        value: 0.512
      additional property: Speechiness
        type: PropertyValue
        value: 0.935
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.768
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.817
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.471
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Messi
    type: MusicRecording
    duration: PT1M11S
    duration ms: 71569
    explicit: false
    by artist: CRAM
    by artist: matatabi
    by artist: Dexter Fizz
    in album: LOOPER
      type: MusicAlbum
      date published: 2021-10-15
    popularity: 1
    genre: japanese-underground-rap
    genre: japanese-beats
    isrc code: QZNWQ2155238
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T10:05:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbe9ca5fc180d59fc3bab84f4927b3789fca538d4d3ec7d46db9601ca38cfd7d3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155238
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9ca5fc180d59fc3bab84f4927b3789fca538d4d3ec7d46db9601ca38cfd7d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155238.
      date published: 2026-07-08T03:20:19Z
    audio: Messi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 165.89
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.567
      additional property: Energy
        type: PropertyValue
        value: 0.662
      additional property: Speechiness
        type: PropertyValue
        value: 0.718
      additional property: Acousticness
        type: PropertyValue
        value: 0.162
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: XXXL
  track: Dig deep
  track: Yairo
  track: Late morning
  track: Coffee break with him
album: no advisory
album: Deep Groove
album: Speechless
album: Tinyautumn2
album: Bon Voyage
album: Troe
album: 1990-
album: KAR
album: Kadode2
album: Room
album: Kawaikutegomen (Rework)
album: Polaroid
album: SKYWALKER
album: BEST PLACE
album: I don't wanna go home
album: Song of the sunset
album: Bye
album: Coffee Party

Liveness
type: PropertyValue
value: 0.266

Valence (Positivity)
type: PropertyValue
value: 0.565

Loudness (dB)
type: PropertyValue
value: -15.654

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

XXXL
type: MusicRecording
duration: PT1M53S
duration ms: 113164
explicit: false
by artist: CRAM
by artist: matatabi
in album: LOOPER
  type: MusicAlbum
  date published: 2021-10-15
popularity: 5
genre: japanese-underground-rap
genre: japanese-beats
isrc code: QZNWQ2155243
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:59:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77b8d24dbf3884a91d765029e0d1e8fe3c21a1a9df5c648dbef65a2019e7ffa8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155243
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b8d24dbf3884a91d765029e0d1e8fe3c21a1a9df5c648dbef65a2019e7ffa8. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155243.
  date published: 2026-07-30T08:30:10Z
audio: XXXL
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 153.672
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.61
  additional property: Energy
    type: PropertyValue
    value: 0.239
  additional property: Speechiness
    type: PropertyValue
    value: 0.245
  additional property: Acousticness
    type: PropertyValue
    value: 0.646
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.912
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.684
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.994
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Dig deep
type: MusicRecording
duration: PT1M34S
duration ms: 94295
explicit: false
by artist: CRAM
by artist: matatabi
in album: LOOPER
  type: MusicAlbum
  date published: 2021-10-15
popularity: 2
genre: japanese-underground-rap
genre: japanese-beats
isrc code: QZNWQ2155248
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:10:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3c9b7de387232a88ee7c6b9f33d1f909a40f6f644620ded678f21ba15476bb4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155248
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c9b7de387232a88ee7c6b9f33d1f909a40f6f644620ded678f21ba15476bb4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155248.
  date published: 2026-07-08T03:20:19Z
audio: Dig deep
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 155.03
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.605
  additional property: Energy
    type: PropertyValue
    value: 0.236
  additional property: Speechiness
    type: PropertyValue
    value: 0.412
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.9
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.783
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.986
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Yairo
type: MusicRecording
duration: PT1M4S
duration ms: 64841
explicit: false
by artist: CRAM
by artist: matatabi
in album: LOOPER
  type: MusicAlbum
  date published: 2021-10-15
popularity: 2
genre: japanese-underground-rap
genre: japanese-beats
isrc code: QZNWQ2155249
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T20:14:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a5f4fc744514e5a53a24563f6cc0a2d03ed0c325439cf04a556e8aae3240e19
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960463
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960463
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155249
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:42:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5f4fc744514e5a53a24563f6cc0a2d03ed0c325439cf04a556e8aae3240e19. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155249.
  date published: 2026-07-31T20:42:35Z
audio: Yairo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.327
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.745
  additional property: Energy
    type: PropertyValue
    value: 0.321
  additional property: Speechiness
    type: PropertyValue
    value: 0.389
  additional property: Acousticness
    type: PropertyValue
    value: 0.916
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.879
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.303
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.208
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Late morning
type: MusicRecording
duration: PT0M47S
duration ms: 47017
explicit: false
by artist: CRAM
by artist: matatabi
in album: LOOPER
  type: MusicAlbum
  date published: 2021-10-15
popularity: 1
genre: japanese-underground-rap
genre: japanese-beats
isrc code: QZNWQ2155250
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T08:41:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf93998966100d69f8417e8b8127f3622729c6a097f6aa1d29040aae0a239e62d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960376
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960376
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155250
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:09:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93998966100d69f8417e8b8127f3622729c6a097f6aa1d29040aae0a239e62d. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155250.
  date published: 2026-07-31T09:09:19Z
audio: Late morning
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.962
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.632
  additional property: Energy
    type: PropertyValue
    value: 0.361
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.863
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.851
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.336
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.405
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Coffee break with him
type: MusicRecording
duration: PT1M59S
duration ms: 119798
explicit: false
by artist: CRAM
by artist: matatabi
in album: LOOPER
  type: MusicAlbum
  date published: 2021-10-15
popularity: 19
genre: japanese-underground-rap
genre: japanese-beats
isrc code: QZNWQ2155251
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T21:48:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a60d607656fc5c70632a1df17e35fb666b7871fda9a6310a3c34c6d01a76262
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155251
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a60d607656fc5c70632a1df17e35fb666b7871fda9a6310a3c34c6d01a76262. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2155251.
  date published: 2026-06-13T15:41:10Z
audio: Coffee break with him
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 159.312
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.34
  additional property: Energy
    type: PropertyValue
    value: 0.217
  additional property: Speechiness
    type: PropertyValue
    value: 0.161
  additional property: Acousticness
    type: PropertyValue
    value: 0.658
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.59
  additional property: Liveness
    type: PropertyValue
    value: 0.147
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.471
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.7
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

no advisory
type: MusicAlbum
date published: 2023-04-04
track: mathilda
  type: MusicRecording
  duration: PT1M58S
  duration ms: 118315
  explicit: false
  by artist: Clickqnot
  by artist: matatabi
  in album: no advisory
    type: MusicAlbum
    date published: 2023-04-04
  popularity: 0
  isrc code: QZK6F2408259
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T05:47:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4ef46fe0a65e66b71ea26f4468cfa00b98c9f3e3f7963bc21d9bc1cc56ba41eb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960362
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960362
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408259
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T06:58:00Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef46fe0a65e66b71ea26f4468cfa00b98c9f3e3f7963bc21d9bc1cc56ba41eb. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408259.
    date published: 2026-07-31T06:58:00Z
  audio: mathilda
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 151.984
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.757
    additional property: Energy
      type: PropertyValue
      value: 0.731
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.131
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.923
    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.961
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.908
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: white rose
  type: MusicRecording
  duration: PT1M38S
  duration ms: 98231
  explicit: false
  by artist: Clickqnot
  by artist: matatabi
  in album: no advisory
    type: MusicAlbum
    date published: 2023-04-04
  popularity: 0
  isrc code: QZK6F2408260
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T01:15:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x214321b53b1acd10ce0ba78f76302dc4d37f65856f5d7aa2de007a0f4c1358fe
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960497
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960497
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408260
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T02:22:04Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214321b53b1acd10ce0ba78f76302dc4d37f65856f5d7aa2de007a0f4c1358fe. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408260.
    date published: 2026-08-01T02:22:04Z
  audio: white rose
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.583
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.818
    additional property: Energy
      type: PropertyValue
      value: 0.568
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.076
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.851
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.333
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.078
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: moon rise
  type: MusicRecording
  duration: PT0M51S
  duration ms: 51000
  explicit: false
  by artist: Clickqnot
  by artist: matatabi
  in album: no advisory
    type: MusicAlbum
    date published: 2023-04-04
  popularity: 0
  isrc code: QZK6F2408265
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T15:01:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x77f575885671cd242fb11004faf6d08f8db541a2aabc2b912d27f4e700fbbe36
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960418
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: moon rise
track: warped
track: maiden voyage
track: the sky is crying

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960418

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408265

OTSTimestamp
type: PropertyValue
value: 2026-07-31T15:20:15Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f575885671cd242fb11004faf6d08f8db541a2aabc2b912d27f4e700fbbe36. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408265.
date published: 2026-07-31T15:20:15Z

moon rise
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 150.531
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.638
additional property: Energy
  type: PropertyValue
  value: 0.501
additional property: Speechiness
  type: PropertyValue
  value: 0.063
additional property: Acousticness
  type: PropertyValue
  value: 0.828
additional property: Instrumentalness
  type: PropertyValue
  value: 0.843
additional property: Liveness
  type: PropertyValue
  value: 0.112
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.533
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.878
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Minor

warped
type: MusicRecording
duration: PT1M16S
duration ms: 76000
explicit: false
by artist: Clickqnot
by artist: matatabi
in album: no advisory
  type: MusicAlbum
  date published: 2023-04-04
popularity: 0
isrc code: QZK6F2408271
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:25:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x29ceda7a8f685927624d0d5a349070f0e54c0516800ad7312174d81223b9a13b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408271
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ceda7a8f685927624d0d5a349070f0e54c0516800ad7312174d81223b9a13b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408271.
  date published: 2026-07-08T03:20:19Z
audio: warped
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 157.183
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.709
  additional property: Energy
    type: PropertyValue
    value: 0.489
  additional property: Speechiness
    type: PropertyValue
    value: 0.394
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.858
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.625
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.154
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

maiden voyage
type: MusicRecording
duration: PT0M45S
duration ms: 45874
explicit: false
by artist: Clickqnot
by artist: matatabi
in album: no advisory
  type: MusicAlbum
  date published: 2023-04-04
popularity: 0
isrc code: QZK6F2408272
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T03:55:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d292fcdb058f454e4679c51ee9939cf959610886a07af2535831b000dce44cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408272
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T04:52:22Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d292fcdb058f454e4679c51ee9939cf959610886a07af2535831b000dce44cb. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408272.
  date published: 2026-08-01T04:52:22Z
audio: maiden voyage
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.474
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.593
  additional property: Energy
    type: PropertyValue
    value: 0.576
  additional property: Speechiness
    type: PropertyValue
    value: 0.083
  additional property: Acousticness
    type: PropertyValue
    value: 0.817
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.957
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.607
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.388
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

the sky is crying
type: MusicRecording
duration: PT1M41S
duration ms: 101500
explicit: false
by artist: Clickqnot
by artist: matatabi
in album: no advisory
  type: MusicAlbum
  date published: 2023-04-04
popularity: 0
isrc code: QZK6F2408273
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:29:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16f90a2c279282e057665255b7a4572f82e930cc8539c77fa2d4a5db81255c50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408273
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f90a2c279282e057665255b7a4572f82e930cc8539c77fa2d4a5db81255c50. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2408273.
  date published: 2026-07-08T03:20:19Z
audio: the sky is crying
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 159.972
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.664
  additional property: Energy
    type: PropertyValue
    value: 0.47
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.967
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.845
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.927
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.343
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Deep Groove
type: MusicAlbum
date published: 2024-02-16
track: UA
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168000
  explicit: false
  by artist: P.O.D.
  by artist: matatabi
  by artist: 写楽
  in album: Deep Groove
    type: MusicAlbum
    date published: 2024-02-16
  isrc code: QZDA62400314
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T18:32:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x18abd6aecab039b87bfbfe185d3f3e60d17e15efad2d207f3865d690cfecfb07
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960448
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960448
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62400314
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T18:48:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18abd6aecab039b87bfbfe185d3f3e60d17e15efad2d207f3865d690cfecfb07. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62400314.
    date published: 2026-07-31T18:48:12Z
  audio: UA
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 158.74
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.656
    additional property: Energy
      type: PropertyValue
      value: 0.419
    additional property: Speechiness
      type: PropertyValue
      value: 0.364
    additional property: Acousticness
      type: PropertyValue
      value: 0.855
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.492
    additional property: Liveness
      type: PropertyValue
      value: 0.105
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.33
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.735
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Floppy disk
  type: MusicRecording
  duration: PT2M11S
  duration ms: 131294
  explicit: false
  by artist: P.O.D.
  by artist: matatabi
  in album: Deep Groove
    type: MusicAlbum
    date published: 2024-02-16
  isrc code: QZDA62400315
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T21:13:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb3a9b68c04ac6208634e05065a58eee02d5e5a1808b9d03ef976496680491fc8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62400315
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a9b68c04ac6208634e05065a58eee02d5e5a1808b9d03ef976496680491fc8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62400315.
    date published: 2026-07-08T03:22:41Z
  audio: Floppy disk
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.246
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.732
    additional property: Energy
      type: PropertyValue
      value: 0.333
    additional property: Speechiness
      type: PropertyValue
      value: 0.784
    additional property: Acousticness
      type: PropertyValue
      value: 0.958
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.006
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.666
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.607
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Speechless
type: MusicAlbum
date published: 2021-07-23
track: Meaningless
  type: MusicRecording
  duration: PT1M39S
  duration ms: 99512
  explicit: false
  by artist: matatabi
  in album: Speechless
    type: MusicAlbum
    date published: 2021-07-23
  genre: japanese-beats
  isrc code: QZK6L2118738
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:23:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd5414085c11974e62c12a1b42fef36584c287a8dc0ba330c21fd8983fdb4355b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2118738
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5414085c11974e62c12a1b42fef36584c287a8dc0ba330c21fd8983fdb4355b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2118738.
    date published: 2026-07-08T03:22:41Z
  audio: Meaningless
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.772
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.788
    additional property: Energy
      type: PropertyValue
      value: 0.184
    additional property: Speechiness
      type: PropertyValue
      value: 0.169
    additional property: Acousticness
      type: PropertyValue
      value: 0.942
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.946
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.697
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.789
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Needless
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182857
  explicit: false
  by artist: matatabi
  in album: Speechless
    type: MusicAlbum
    date published: 2021-07-23
  genre: japanese-beats
  isrc code: QZK6L2118740
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T04:40:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcd3e7162ede18edf7d748998fd8db1e7e4bc0cabe0e6c35d6ccec39575a514d3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2118740
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3e7162ede18edf7d748998fd8db1e7e4bc0cabe0e6c35d6ccec39575a514d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2118740.
    date published: 2026-07-08T03:20:19Z
  audio: Needless
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.077
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.721
    additional property: Energy
      type: PropertyValue
      value: 0.14
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.775
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.877
    additional property: Liveness
      type: PropertyValue
      value: 0.095
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.82
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.92
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Tinyautumn2
type: MusicAlbum
date published: 2020-12-11
track: Juicy blunts
  type: MusicRecording
  duration: PT1M58S
  duration ms: 118509
  explicit: false
  by artist: matatabi
  in album: Tinyautumn2
    type: MusicAlbum
    date published: 2020-12-11
  popularity: 1
  genre: japanese-beats
  isrc code: QZNWX2057934
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:50:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0cc7be7b00c321bb3ee46f3136fd978932a350280ffff1af94eef793708c676d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2057934
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc7be7b00c321bb3ee46f3136fd978932a350280ffff1af94eef793708c676d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2057934.
    date published: 2026-07-08T03:20:19Z
  audio: Juicy blunts
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.868
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.516
    additional property: Energy
      type: PropertyValue
      value: 0.439
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.765
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.772
    additional property: Liveness
      type: PropertyValue
      value: 0.19
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.143
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.683
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Row of trees
  type: MusicRecording
  duration: PT2M30S
  duration ms: 150000
  explicit: false
  by artist: matatabi
  in album: Tinyautumn2
    type: MusicAlbum
    date published: 2020-12-11
  popularity: 0
  genre: japanese-beats
  isrc code: QZNWX2057943
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T22:38:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7ac8faec44806e48d986a7fc644e4660343ae7a0f12cff310139e35c83785a96
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2057943
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac8faec44806e48d986a7fc644e4660343ae7a0f12cff310139e35c83785a96. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2057943.
    date published: 2026-07-08T03:22:41Z
  audio: Row of trees
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 154.733
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.653
    additional property: Energy
      type: PropertyValue
      value: 0.577
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.608
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.916
    additional property: Liveness
      type: PropertyValue
      value: 0.215
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.756
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.605
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Bon Voyage
type: MusicAlbum
date published: 2020-11-11

Troe
type: MusicAlbum
date published: 2020-05-08
track: Dida
  type: MusicRecording
  duration: PT1M54S
  duration ms: 114285
  explicit: false
  by artist: matatabi
  in album: Troe
    type: MusicAlbum
    date published: 2020-05-08
  genre: japanese-beats
  isrc code: QZES82047179
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T22:27:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2f683a4bfb096fa9c8ca42fd01e1a67a6649ef4560f56ca0d81bc661f9283c3e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82047179
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f683a4bfb096fa9c8ca42fd01e1a67a6649ef4560f56ca0d81bc661f9283c3e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82047179.
    date published: 2026-07-08T03:22:41Z
  audio: Dida
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.119
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.736
    additional property: Energy
      type: PropertyValue
      value: 0.202
    additional property: Speechiness
      type: PropertyValue
      value: 0.086
    additional property: Acousticness
      type: PropertyValue
      value: 0.336
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.957
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.304
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.277
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

1990-
type: MusicAlbum
date published: 2020-05-01
track: Natsukashii Mirai
  type: MusicRecording
  duration: PT1M59S
  duration ms: 119756
  explicit: false
  by artist: matatabi
  by artist: P.O.D.
  in album: 1990-
    type: MusicAlbum
    date published: 2020-05-01
  genre: japanese-beats
  isrc code: QZES62072816
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T00:39:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x644b56eb22b8dc9f21644ec2008a34ed3fafcff901ca3626ba96dbea8b6bc329
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960334
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960334
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62072816
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T02:19:15Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644b56eb22b8dc9f21644ec2008a34ed3fafcff901ca3626ba96dbea8b6bc329. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62072816.
    date published: 2026-07-31T02:19:15Z
  audio: Natsukashii Mirai
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.41
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.602
    additional property: Energy
      type: PropertyValue
      value: 0.689
    additional property: Speechiness
      type: PropertyValue
      value: 0.427
    additional property: Acousticness
      type: PropertyValue
      value: 0.77
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.615
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.033
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Dawgs04
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192287
  explicit: false
  by artist: matatabi
  by artist: P.O.D.
  in album: 1990-
    type: MusicAlbum
    date published: 2020-05-01
  genre: japanese-beats
  isrc code: QZES62072818
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T16:57:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x61d52af900669fe5633c2f28246e3f2265af9691b51575aed544f2a7ccd0df72
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960441
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960441
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62072818
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T17:29:52Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d52af900669fe5633c2f28246e3f2265af9691b51575aed544f2a7ccd0df72. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62072818.
    date published: 2026-07-31T17:29:52Z
  audio: Dawgs04
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.199
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.802
    additional property: Energy
      type: PropertyValue
      value: 0.511
    additional property: Speechiness
      type: PropertyValue
      value: 0.408
    additional property: Acousticness
      type: PropertyValue
      value: 0.839
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.004
    additional property: Liveness
      type: PropertyValue
      value: 0.153
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.923
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.712
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

KAR
type: MusicAlbum
date published: 2020-04-01

Kadode2
type: MusicAlbum
date published: 2020-03-28
track: Scene3
  type: MusicRecording
  duration: PT1M55S
  duration ms: 115662
  explicit: false
  by artist: matatabi
  in album: Kadode2
    type: MusicAlbum
    date published: 2020-03-28
  genre: japanese-beats
  isrc code: QZDA62034014
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T00:33:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xae0500c867123d95a0ae531489c4498fae7d910c4963408b371428d4507fcd7c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960334
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960334
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62034014
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T02:19:15Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0500c867123d95a0ae531489c4498fae7d910c4963408b371428d4507fcd7c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62034014.
    date published: 2026-07-31T02:19:15Z
  audio: Scene3
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.462
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.669
    additional property: Energy
      type: PropertyValue
      value: 0.087
    additional property: Speechiness
      type: PropertyValue
      value: 0.074
    additional property: Acousticness
      type: PropertyValue
      value: 0.87
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.945
    additional property: Liveness
      type: PropertyValue
      value: 0.122
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.607
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.468
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Room
type: MusicAlbum
date published: 2020-01-20

Kawaikutegomen (Rework)
type: MusicAlbum
date published: 2024-07-01

Polaroid
type: MusicAlbum
date published: 2024-03-26

SKYWALKER
type: MusicAlbum
date published: 2023-05-14
track: SKYWALKER
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217250
  explicit: false
  by artist: matatabi
  by artist: NICKELMAN
  by artist: Jambo Lacquer
  in album: SKYWALKER
    type: MusicAlbum
    date published: 2023-05-14
  genre: japanese-beats
  isrc code: TCJPV2386797
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T02:24:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xab3152765613f1d54f1cdb83be1a4590136c2dd01a26663a2ba5241c4b2a839b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2386797
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3152765613f1d54f1cdb83be1a4590136c2dd01a26663a2ba5241c4b2a839b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2386797.
    date published: 2026-07-08T03:22:41Z
  audio: SKYWALKER
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.03
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.633
    additional property: Energy
      type: PropertyValue
      value: 0.677
    additional property: Speechiness
      type: PropertyValue
      value: 0.262
    additional property: Acousticness
      type: PropertyValue
      value: 0.488
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.567
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.159
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

BEST PLACE
type: MusicAlbum
date published: 2023-01-31

I don't wanna go home
type: MusicAlbum
date published: 2021-12-29

Song of the sunset
type: MusicAlbum
date published: 2021-09-30

Bye
type: MusicAlbum
date published: 2021-05-18

Coffee Party
type: MusicAlbum
date published: 2020-08-16
track: Yokan
  type: MusicRecording
  duration: PT1M15S
  duration ms: 75000
  explicit: false
  by artist: 写楽
  by artist: matatabi
  in album: Coffee Party
    type: MusicAlbum
    date published: 2020-08-16
  isrc code: QZK6M2037998
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:14:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1cc04e91e993a1b17ca99ed0e3ef1c30b24f535e39cdda44a170cf7347cf142d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2037998
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc04e91e993a1b17ca99ed0e3ef1c30b24f535e39cdda44a170cf7347cf142d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2037998.
    date published: 2026-07-08T03:20:19Z
  audio: Yokan
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.435
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.735
    additional property: Energy
      type: PropertyValue
      value: 0.223
    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
      value: 0.492
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.926
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.71
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.806
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Magic Line
  type: MusicRecording
  duration: PT2M9S
  duration ms: 129000
  explicit: false
  by artist: 写楽
  by artist: matatabi
  in album: Coffee Party
    type: MusicAlbum
    date published: 2020-08-16
  isrc code: QZK6M2037999
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T00:49:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x227ece20dd9f2c4eaae4f6bcd21b64725956b869d4c75bbf646fed98967b25ae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2037999
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227ece20dd9f2c4eaae4f6bcd21b64725956b869d4c75bbf646fed98967b25ae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2037999.
    date published: 2026-07-08T03:20:19Z
  audio: Magic Line
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 153.877
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.522
    additional property: Energy
      type: PropertyValue
      value: 0.204
    additional property: Speechiness
      type: PropertyValue
      value: 0.419
    additional property: Acousticness
      type: PropertyValue
      value: 0.386
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.803
    additional property: Liveness
      type: PropertyValue
      value: 0.08
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.684
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.574
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 紫陽花
  type: MusicRecording
  duration: PT1M54S
  duration ms: 114272
  explicit: false
  by artist: 写楽
  by artist: matatabi
  in album: Coffee Party
    type: MusicAlbum
    date published: 2020-08-16
  isrc code: QZK6M2038000
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T13:14:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x19a7e5d564ed53dafc4263da6e1fdc40d3186e6cd57259a84cbd7bcc8741998c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 紫陽花
track: Ordinary - Instrumental
track: Coffee Party
track: Morning Glory

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2038000

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:30:09Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a7e5d564ed53dafc4263da6e1fdc40d3186e6cd57259a84cbd7bcc8741998c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2038000.
date published: 2026-07-02T03:30:09Z

紫陽花
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 107.182
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.72
additional property: Energy
  type: PropertyValue
  value: 0.233
additional property: Speechiness
  type: PropertyValue
  value: 0.263
additional property: Acousticness
  type: PropertyValue
  value: 0.759
additional property: Instrumentalness
  type: PropertyValue
  value: 0.006
additional property: Liveness
  type: PropertyValue
  value: 0.092
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.462
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.042
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

Ordinary - Instrumental
type: MusicRecording
duration: PT2M8S
duration ms: 128780
explicit: false
by artist: 写楽
by artist: matatabi
in album: Coffee Party
  type: MusicAlbum
  date published: 2020-08-16
isrc code: QZK6M2038001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:29:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefb58a7ebecaccfefae3685751fc2bebc288a1f5def6bdf95ba7f8126a58d469
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2038001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb58a7ebecaccfefae3685751fc2bebc288a1f5def6bdf95ba7f8126a58d469. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2038001.
  date published: 2026-07-08T03:20:19Z
audio: Ordinary - Instrumental
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.823
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.753
  additional property: Energy
    type: PropertyValue
    value: 0.124
  additional property: Speechiness
    type: PropertyValue
    value: 0.082
  additional property: Acousticness
    type: PropertyValue
    value: 0.456
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.673
  additional property: Liveness
    type: PropertyValue
    value: 0.094
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.19
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.55
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Coffee Party
type: MusicRecording
duration: PT2M3S
duration ms: 123076
explicit: false
by artist: 写楽
by artist: matatabi
in album: Coffee Party
  type: MusicAlbum
  date published: 2020-08-16
isrc code: QZK6M2038002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T13:12:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a09e2b0fc1ef87729b32b994268f444fbc3c80bf231f1245a44e957380f6214
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2038002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a09e2b0fc1ef87729b32b994268f444fbc3c80bf231f1245a44e957380f6214. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2038002.
  date published: 2026-07-02T03:30:09Z
audio: Coffee Party
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 156.221
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.755
  additional property: Energy
    type: PropertyValue
    value: 0.297
  additional property: Speechiness
    type: PropertyValue
    value: 0.527
  additional property: Acousticness
    type: PropertyValue
    value: 0.842
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.298
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.914
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Morning Glory
type: MusicRecording
duration: PT2M8S
duration ms: 128780
explicit: false
by artist: 写楽
by artist: matatabi
in album: Coffee Party
  type: MusicAlbum
  date published: 2020-08-16
isrc code: QZK6M2038003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T19:46:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe4de5be2bd94559ae72e17cf5e04c82af5dcfe21428d154a4e8fa5238120054d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2038003
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:09:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4de5be2bd94559ae72e17cf5e04c82af5dcfe21428d154a4e8fa5238120054d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2038003.
  date published: 2026-07-30T20:09:33Z
audio: Morning Glory
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.081
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.605
  additional property: Energy
    type: PropertyValue
    value: 0.591
  additional property: Speechiness
    type: PropertyValue
    value: 0.234
  additional property: Acousticness
    type: PropertyValue
    value: 0.698
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.895
  additional property: Liveness
    type: PropertyValue
    value: 0.324
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.742
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.094
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor