月に足跡を残した少女達は一体何を見たのか...
type: MusicGroup
popularity: 13
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xddebc3bea3eae95446f149e13b3d8a60c57b4154fd68103ef7c33b63c5932f60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1e44739-a183-4515-841f-019db1f71f02.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1e44739-a183-4515-841f-019db1f71f02.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e1e44739-a183-4515-841f-019db1f71f02
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xddebc3bea3eae95446f149e13b3d8a60c57b4154fd68103ef7c33b63c5932f60","name":"月に足跡を残した少女達は一体何を見たのか...","registered_at":"2026-06-15T04:15:13Z","symbol":"NIM0678944","token_address":"0x56cc0673ed80af901023c2f976e8f65e605a3408","type":"artist","uuid":"e1e44739-a183-4515-841f-019db1f71f02"}
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 0xddebc3bea3eae95446f149e13b3d8a60c57b4154fd68103ef7c33b63c5932f60. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1e44739-a183-4515-841f-019db1f71f02.json and https://artists.proofprofile.net/proofs/artist/e1e44739-a183-4515-841f-019db1f71f02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0xddebc3bea3eae95446f149e13b3d8a60c57b4154fd68103ef7c33b63c5932f60","name":"月に足跡を残した少女達は一体何を見たのか...","registered_at":"2026-06-15T04:15:13Z","symbol":"NIM0678944","token_address":"0x56cc0673ed80af901023c2f976e8f65e605a3408","type":"artist","uuid":"e1e44739-a183-4515-841f-019db1f71f02"}
album: 声を上げろ
  type: MusicAlbum
  date published: 2022-05-28
album: 静寂BROKEN
  type: MusicAlbum
  date published: 2023-04-08
album: b o k u t o w a
  type: MusicAlbum
  date published: 2023-06-03
album: My Monster
  type: MusicAlbum
  date published: 2023-09-30
  track: アオナツ
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237882
    explicit: false
    by artist: 月に足跡を残した少女達は一体何を見たのか...
    in album: My Monster
      type: MusicAlbum
      date published: 2023-09-30
    isrc code: TCJPX2336408
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T14:00:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe86fd0cb38a9fbda99d9aeceae81798d4f3775650bd167a8d14c4ad2cacc3e17
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959138
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959138
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2336408
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T14:10:55Z
    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 0xe86fd0cb38a9fbda99d9aeceae81798d4f3775650bd167a8d14c4ad2cacc3e17. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/TCJPX2336408.
      date published: 2026-07-22T14:10:55Z
    audio: アオナツ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.937
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.553
      additional property: Energy
        type: PropertyValue
        value: 0.849
      additional property: Speechiness
        type: PropertyValue
        value: 0.085
      additional property: Acousticness
        type: PropertyValue
        value: 0.01
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.208
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.668
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.059
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 白昼夢と境界線
  type: MusicAlbum
  date published: 2023-10-28
  track: 白昼夢と境界線
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236319
    explicit: false
    by artist: 月に足跡を残した少女達は一体何を見たのか...
    in album: 白昼夢と境界線
      type: MusicAlbum
      date published: 2023-10-28
    isrc code: TCJPX2366184
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T19:05:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa91a8bdabe0d48e99d199775b14e6d926747092d873cfb9e5d700acd9188e028
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2366184
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0xa91a8bdabe0d48e99d199775b14e6d926747092d873cfb9e5d700acd9188e028. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCJPX2366184.
      date published: 2026-07-20T21:15:01Z
    audio: 白昼夢と境界線
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 162.94
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.572
      additional property: Energy
        type: PropertyValue
        value: 0.901
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: エルファリンスル
album: Dream High!
album: Artemis
album: JOKER
album: Days.
album: 約束の場所
album: Dear Earth

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.087

Valence (Positivity)
type: PropertyValue
value: 0.802

Loudness (dB)
type: PropertyValue
value: -4.175

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Minor

エルファリンスル
type: MusicAlbum
date published: 2023-12-02

Dream High!
type: MusicAlbum
date published: 2024-01-31
track: Heavenly night
  type: MusicRecording
  duration: PT3M25S
  duration ms: 205901
  explicit: false
  by artist: 月に足跡を残した少女達は一体何を見たのか...
  in album: Dream High!
    type: MusicAlbum
    date published: 2024-01-31
  isrc code: TCJPY2493039
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T07:01:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa422166820b11c8da9e39336ee5e872285be4d5e1769709fe6c778b8c1e0c5c4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959107
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959107
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPY2493039
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T10:04:41Z
  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 0xa422166820b11c8da9e39336ee5e872285be4d5e1769709fe6c778b8c1e0c5c4. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:04:41Z), 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/TCJPY2493039.
    date published: 2026-07-22T10:04:41Z
  audio: Heavenly night
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 91.443
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.578
    additional property: Energy
      type: PropertyValue
      value: 0.888
    additional property: Speechiness
      type: PropertyValue
      value: 0.092
    additional property: Acousticness
      type: PropertyValue
      value: 0.025
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.329
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.58
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.397
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 針はもう止めるな
  type: MusicRecording
  duration: PT3M40S
  duration ms: 220465
  explicit: false
  by artist: 月に足跡を残した少女達は一体何を見たのか...
  in album: Dream High!
    type: MusicAlbum
    date published: 2024-01-31
  isrc code: TCJPY2493041
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T02:05:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3b9f0593941b882b73693ed87f686ffa952663c2ef9fdf36444f4f110682e143
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPY2493041
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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 0x3b9f0593941b882b73693ed87f686ffa952663c2ef9fdf36444f4f110682e143. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPY2493041.
    date published: 2026-07-05T10:01:46Z
  audio: 針はもう止めるな
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 172.095
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.582
    additional property: Energy
      type: PropertyValue
      value: 0.926
    additional property: Speechiness
      type: PropertyValue
      value: 0.135
    additional property: Acousticness
      type: PropertyValue
      value: 0.028
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.329
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.504
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.246
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Artemis
type: MusicAlbum
date published: 2024-03-13

JOKER
type: MusicAlbum
date published: 2024-05-05

Days.
type: MusicAlbum
date published: 2025-01-03
track: Days.
  type: MusicRecording
  duration: PT4M56S
  duration ms: 296220
  explicit: false
  by artist: 月に足跡を残した少女達は一体何を見たのか...
  in album: Days.
    type: MusicAlbum
    date published: 2025-01-03
  isrc code: TCJPD2534779
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T23:20:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x67eddfabff5bfd867cd671767fd0ea01043e7d3944020e7d2e853f3b6c038dc1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958796
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958796
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2534779
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T02:21:50Z
  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 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 0x67eddfabff5bfd867cd671767fd0ea01043e7d3944020e7d2e853f3b6c038dc1. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:21:50Z), 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/TCJPD2534779.
    date published: 2026-07-20T02:21:50Z
  audio: Days.
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.518
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.515
    additional property: Energy
      type: PropertyValue
      value: 0.935
    additional property: Speechiness
      type: PropertyValue
      value: 0.077
    additional property: Acousticness
      type: PropertyValue
      value: 0.013
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.247
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.685
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.143
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

約束の場所
type: MusicAlbum
date published: 2025-05-02
track: 約束の場所
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249000
  explicit: false
  by artist: 月に足跡を残した少女達は一体何を見たのか...
  in album: 約束の場所
    type: MusicAlbum
    date published: 2025-05-02
  isrc code: TCJPG2593603
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T18:59:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe82fcf89219d1c1f00e75da0a376e5dd277812f5b91d0bef0b1f3f791b710830
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958770
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958770
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG2593603
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T19:26:13Z
  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 0xe82fcf89219d1c1f00e75da0a376e5dd277812f5b91d0bef0b1f3f791b710830. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/TCJPG2593603.
    date published: 2026-07-19T19:26:13Z
  audio: 約束の場所
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 91.487
    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: 0.633
    additional property: Energy
      type: PropertyValue
      value: 0.763
    additional property: Speechiness
      type: PropertyValue
      value: 0.059
    additional property: Acousticness
      type: PropertyValue
      value: 0.005
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.393
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.716
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.752
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Dear Earth
type: MusicAlbum
date published: 2025-10-05