maikeru
type: MusicGroup
popularity: 19
followers: 2795
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c712727ee8e30cbf9a18dae512cdb0725f805c158cb978e76894ccbfab4ff58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac5c8e8d-a8eb-4b04-a332-af06d1ba1773.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac5c8e8d-a8eb-4b04-a332-af06d1ba1773.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac5c8e8d-a8eb-4b04-a332-af06d1ba1773
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c712727ee8e30cbf9a18dae512cdb0725f805c158cb978e76894ccbfab4ff58. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac5c8e8d-a8eb-4b04-a332-af06d1ba1773.json and https://artists.proofprofile.net/proofs/artist/ac5c8e8d-a8eb-4b04-a332-af06d1ba1773.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:12:23Z
album: chit-chat
  type: MusicAlbum
  date published: 2021-10-01
  track: chit-chat
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197648
    explicit: false
    by artist: maikeru
    in album: chit-chat
      type: MusicAlbum
      date published: 2021-10-01
    isrc code: QZMER2127491
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T08:38:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc6a673e7f7b897d858a6b71fc6dfe04fbd932b1572b33c9786f664483b5868b7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957680
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957680
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMER2127491
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T09:07:22Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a673e7f7b897d858a6b71fc6dfe04fbd932b1572b33c9786f664483b5868b7. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/QZMER2127491.
      date published: 2026-07-12T09:07:22Z
    audio: chit-chat
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.063
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.873
      additional property: Energy
        type: PropertyValue
        value: 0.398
      additional property: Speechiness
        type: PropertyValue
        value: 0.285
      additional property: Acousticness
        type: PropertyValue
        value: 0.567
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.079
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.539
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.066
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: dress
  type: MusicAlbum
  date published: 2021-11-01
album: ma chérie
  type: MusicAlbum
  date published: 2021-12-01
album: christmas
  type: MusicAlbum
  date published: 2021-12-30
album: JAPAN
  type: MusicAlbum
  date published: 2022-03-10
album: make a wish
  type: MusicAlbum
  date published: 2022-09-28
  track: make a wish
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183170
    explicit: false
    by artist: maikeru
    in album: make a wish
      type: MusicAlbum
      date published: 2022-09-28
    isrc code: QZPLR2200117
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T05:29:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbc9d6a4c41f434d9cbb548f4fb0f52cc472ba8beac94b1dfa084e6bd71d20504
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958673
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958673
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2200117
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T05:38:28Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9d6a4c41f434d9cbb548f4fb0f52cc472ba8beac94b1dfa084e6bd71d20504. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZPLR2200117.
      date published: 2026-07-19T05:38:28Z
    audio: make a wish
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.404
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.723
      additional property: Energy
        type: PropertyValue
        value: 0.234
      additional property: Speechiness
        type: PropertyValue
        value: 0.252
      additional property: Acousticness
        type: PropertyValue
        value: 0.901
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: train
album: alucha
album: Letters
album: just like you
album: U & I

Instrumentalness
type: PropertyValue
value: 0.049

Liveness
type: PropertyValue
value: 0.365

Valence (Positivity)
type: PropertyValue
value: 0.464

Loudness (dB)
type: PropertyValue
value: -17.721

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

train
type: MusicAlbum
date published: 2023-01-07

alucha
type: MusicAlbum
date published: 2023-05-26

Letters
type: MusicAlbum
date published: 2023-10-06
track: 07:25
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192000
  explicit: false
  by artist: maikeru
  in album: Letters
    type: MusicAlbum
    date published: 2023-10-06
  isrc code: QZTB62315134
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T22:40:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2334205bd45bec8c7768b0e1b24a8dacab1ca6a236247a437b658cdbb423f4d2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959076
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959076
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62315134
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T23:41:40Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2334205bd45bec8c7768b0e1b24a8dacab1ca6a236247a437b658cdbb423f4d2. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZTB62315134.
    date published: 2026-07-21T23:41:40Z
  audio: 07:25
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 65.144
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.732
    additional property: Energy
      type: PropertyValue
      value: 0.197
    additional property: Speechiness
      type: PropertyValue
      value: 0.452
    additional property: Acousticness
      type: PropertyValue
      value: 0.673
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.045
    additional property: Liveness
      type: PropertyValue
      value: 0.614
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.118
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.996
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: letters
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156190
  explicit: false
  by artist: maikeru
  in album: Letters
    type: MusicAlbum
    date published: 2023-10-06
  isrc code: QZTB62315135
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T07:54:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x24fe7219744f9af89e9b8282273462db147726c604c625b5c03cb554de29875d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958700
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958700
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62315135
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T08:09:50Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fe7219744f9af89e9b8282273462db147726c604c625b5c03cb554de29875d. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZTB62315135.
    date published: 2026-07-19T08:09:50Z
  audio: letters
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.89
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.479
    additional property: Energy
      type: PropertyValue
      value: 0.028
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.992
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.131
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.095
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.893
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: jam of stars
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219266
  explicit: false
  by artist: maikeru
  in album: Letters
    type: MusicAlbum
    date published: 2023-10-06
  isrc code: QZTB62315136
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T21:55:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x98fcbd7dae6b74240a07c3cc07a21b65d49f3d717920233dec06a4ef3d9db3df
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62315136
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: jam of stars
track: paper boat

OTSTimestamp
type: PropertyValue
value: 2026-07-05T01:43:49Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fcbd7dae6b74240a07c3cc07a21b65d49f3d717920233dec06a4ef3d9db3df. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTB62315136.
date published: 2026-07-05T01:43:49Z

jam of stars
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 62.272
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.526
additional property: Energy
  type: PropertyValue
  value: 0.139
additional property: Speechiness
  type: PropertyValue
  value: 0.224
additional property: Acousticness
  type: PropertyValue
  value: 0.886
additional property: Instrumentalness
  type: PropertyValue
  value: 0.092
additional property: Liveness
  type: PropertyValue
  value: 0.346
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.382
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.012
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

paper boat
type: MusicRecording
duration: PT3M22S
duration ms: 202632
explicit: false
by artist: maikeru
in album: Letters
  type: MusicAlbum
  date published: 2023-10-06
isrc code: QZTB62315137
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T13:06:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1299ca90f9f5fa3c5a22fc727b30b54043d83b4a7ada19963fb8992987fde10
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958552
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958552
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62315137
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T13:15:29Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1299ca90f9f5fa3c5a22fc727b30b54043d83b4a7ada19963fb8992987fde10. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZTB62315137.
  date published: 2026-07-18T13:15:29Z
audio: paper boat
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.2
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.834
  additional property: Energy
    type: PropertyValue
    value: 0.561
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.699
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.253
  additional property: Liveness
    type: PropertyValue
    value: 0.065
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.696
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.02
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

just like you
type: MusicAlbum
date published: 2024-02-09
track: just like you
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225306
  explicit: false
  by artist: maikeru
  in album: just like you
    type: MusicAlbum
    date published: 2024-02-09
  isrc code: QZDA72410704
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T12:47:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x44d49d5f5b2d6b798674bb3945a899c48d581ff15ceecc56c938354a223dc598
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958157
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958157
  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSVerifyInstructions
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    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
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d49d5f5b2d6b798674bb3945a899c48d581ff15ceecc56c938354a223dc598. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:49:44Z), 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/QZDA72410704.
    date published: 2026-07-15T15:49:44Z
  audio: just like you
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    additional property: Danceability
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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      value: -15.176
    additional property: Key Name
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    additional property: Mode Name
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U & I
type: MusicAlbum
date published: 2025-06-06
track: U & I
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  duration ms: 310188
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  by artist: maikeru
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    type: MusicAlbum
    date published: 2025-06-06
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2558833
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  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033d04d27281305dbf68e6914ce7b4c7e66bc9e3b1a872206faddcda7fcb3c7d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:40:43Z), 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/QZTAZ2558833.
    date published: 2026-07-15T16:40:43Z
  audio: U & I
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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