Iskra Strings
type: MusicGroup
popularity: 33
followers: 2405
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d0d6ae87c840fb4ecbf9eee3520483505c3fbd38acaa9fa3b70a69eccee865e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bbbf161e-1b60-4718-b2b3-a3c5277dd1cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bbbf161e-1b60-4718-b2b3-a3c5277dd1cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bbbf161e-1b60-4718-b2b3-a3c5277dd1cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4d0d6ae87c840fb4ecbf9eee3520483505c3fbd38acaa9fa3b70a69eccee865e","name":"Iskra Strings","registered_at":"2026-06-12T08:29:23Z","symbol":"NIM0242461","token_address":"0x812263aa8cd418ccaf3eb6f31c0074cb5af9f3da","type":"artist","uuid":"bbbf161e-1b60-4718-b2b3-a3c5277dd1cb"}
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 → block must exist at that height 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 0x4d0d6ae87c840fb4ecbf9eee3520483505c3fbd38acaa9fa3b70a69eccee865e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbbf161e-1b60-4718-b2b3-a3c5277dd1cb.json and https://artists.proofprofile.net/proofs/artist/bbbf161e-1b60-4718-b2b3-a3c5277dd1cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x4d0d6ae87c840fb4ecbf9eee3520483505c3fbd38acaa9fa3b70a69eccee865e","name":"Iskra Strings","registered_at":"2026-06-12T08:29:23Z","symbol":"NIM0242461","token_address":"0x812263aa8cd418ccaf3eb6f31c0074cb5af9f3da","type":"artist","uuid":"bbbf161e-1b60-4718-b2b3-a3c5277dd1cb"}
album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
  track: Chorale (Five)
    type: MusicRecording
    duration: PT4M12S
    duration ms: 252213
    explicit: false
    by artist: Iskra String Quartet
    by artist: Iskra Strings
    by artist: Peter Gregson
    in album: Iskra
      type: MusicAlbum
      date published: 2015-01-02
    isrc code: SEYTP1505001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-07T19:31:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x421e8a520321b753a7ed4b8c088699658586b4daeb681f7a1533830912c2f87c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953528
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/953528
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/0Cot8hd7mqzRBe1u4BVTCM.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Cot8hd7mqzRBe1u4BVTCM
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T15:41:10Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x421e8a520321b753a7ed4b8c088699658586b4daeb681f7a1533830912c2f87c","isrc":"SEYTP1505001","name":"Chorale (Five)","registered_at":"2026-06-07T19:31:45Z","spotify_id":"0Cot8hd7mqzRBe1u4BVTCM","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x421e8a520321b753a7ed4b8c088699658586b4daeb681f7a1533830912c2f87c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Cot8hd7mqzRBe1u4BVTCM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Cot8hd7mqzRBe1u4BVTCM.
      date published: 2026-06-13T15:41:10Z
      text: {"copyright_id":"0x421e8a520321b753a7ed4b8c088699658586b4daeb681f7a1533830912c2f87c","isrc":"SEYTP1505001","name":"Chorale (Five)","registered_at":"2026-06-07T19:31:45Z","spotify_id":"0Cot8hd7mqzRBe1u4BVTCM","type":"track"}
  track: Let Me Sleep
    type: MusicRecording
    duration: PT2M6S
    duration ms: 126120
    explicit: false
    by artist: Iskra String Quartet
    by artist: Iskra Strings
    by artist: David Julyan
    in album: Iskra
      type: MusicAlbum
      date published: 2015-01-02
    isrc code: SEYTP1505002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-25T18:28:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9e75e0e50f23f61518edf2291a41d0edfe29a38f41ea24d4c58a738ddce47776
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956312
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956312
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/36RSHkdIUcohkiCC3tYbPn.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/36RSHkdIUcohkiCC3tYbPn
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T05:09:12Z
    additional property: OTSCanonicalRecord
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      value: {"copyright_id":"0x9e75e0e50f23f61518edf2291a41d0edfe29a38f41ea24d4c58a738ddce47776","isrc":"SEYTP1505002","name":"Let Me Sleep","registered_at":"2026-06-25T18:28:07Z","spotify_id":"36RSHkdIUcohkiCC3tYbPn","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x9e75e0e50f23f61518edf2291a41d0edfe29a38f41ea24d4c58a738ddce47776. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/36RSHkdIUcohkiCC3tYbPn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/36RSHkdIUcohkiCC3tYbPn.
      date published: 2026-07-02T05:09:12Z
      text: {"copyright_id":"0x9e75e0e50f23f61518edf2291a41d0edfe29a38f41ea24d4c58a738ddce47776","isrc":"SEYTP1505002","name":"Let Me Sleep","registered_at":"2026-06-25T18:28:07Z","spotify_id":"36RSHkdIUcohkiCC3tYbPn","type":"track"}
  track: Melodia (I)
    type: MusicRecording
    duration: PT2M14S
    duration ms: 134520
    explicit: false
    by artist: Iskra String Quartet
    by artist: Iskra Strings
    by artist: Jóhann Jóhannsson
    in album: Iskra
      type: MusicAlbum
      date published: 2015-01-02
    isrc code: SEYTP1505003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-27T01:07:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6293b19f4661b37e7848cfc293d40a7aab1f9d69ac22ff2061b10812c6013dcf
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956351
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956351
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/21iQuXGBpUB5bQbRkz2Wud.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/21iQuXGBpUB5bQbRkz2Wud
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T11:38:34Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x6293b19f4661b37e7848cfc293d40a7aab1f9d69ac22ff2061b10812c6013dcf","isrc":"SEYTP1505003","name":"Melodia (I)","registered_at":"2026-06-27T01:07:44Z","spotify_id":"21iQuXGBpUB5bQbRkz2Wud","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6293b19f4661b37e7848cfc293d40a7aab1f9d69ac22ff2061b10812c6013dcf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/21iQuXGBpUB5bQbRkz2Wud.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/21iQuXGBpUB5bQbRkz2Wud.
      date published: 2026-07-02T11:38:34Z
      text: {"copyright_id":"0x6293b19f4661b37e7848cfc293d40a7aab1f9d69ac22ff2061b10812c6013dcf","isrc":"SEYTP1505003","name":"Melodia (I)","registered_at":"2026-06-27T01:07:44Z","spotify_id":"21iQuXGBpUB5bQbRkz2Wud","type":"track"}
  track: For Then
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216853
    explicit: false
    by artist: Iskra String Quartet
    by artist: Iskra Strings
    by artist: Alex Baranowski
    in album: Iskra
      type: MusicAlbum
      date published: 2015-01-02
    isrc code: SEYTP1505004
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSRecordURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSCanonicalRecord
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
  track: Blue Notebook
  track: Film Credits (Arr. For String Quartet)
  track: Breathe
  track: Mother's Theme
  track: Heliopause
track: Blue Notebook
track: Chorale (Five)
track: For Then
track: Mother's Theme
track: Melodia (I)
track: Film Credits (Arr. For String Quartet)
track: Let Me Sleep
track: Breathe
track: Heliopause
track: Spirographs - Beatless Mix
track: Spirographs - Radio Edit
track: Interiority
track: Night Sky
track: Origami
track: Purpose
track: Deletia
track: Egosystem
track: Hallucinate
track: Eschaton
track: Transmit

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-08T19:24:13+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953528

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953528

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/2yGNA0P1t951r8aSGDaPTJ.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2yGNA0P1t951r8aSGDaPTJ

OTSTimestamp
type: PropertyValue
value: 2026-06-13T15:41:10Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470","isrc":"SEYTP1505004","name":"For Then","registered_at":"2026-06-08T19:24:13Z","spotify_id":"2yGNA0P1t951r8aSGDaPTJ","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2yGNA0P1t951r8aSGDaPTJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2yGNA0P1t951r8aSGDaPTJ.
date published: 2026-06-13T15:41:10Z
text: {"copyright_id":"0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470","isrc":"SEYTP1505004","name":"For Then","registered_at":"2026-06-08T19:24:13Z","spotify_id":"2yGNA0P1t951r8aSGDaPTJ","type":"track"}

Blue Notebook
type: MusicRecording
duration: PT1M57S
duration ms: 117093
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Isobel Waller-Bridge
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T12:10:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43fa1f7acfbbefb146649ce82ae03f08995f07293a93fdddd3be4b8b223cad58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6hWYl0NdPgNAOoreAvcqJ5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hWYl0NdPgNAOoreAvcqJ5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x43fa1f7acfbbefb146649ce82ae03f08995f07293a93fdddd3be4b8b223cad58","isrc":"SEYTP1505005","name":"Blue Notebook","registered_at":"2026-06-05T12:10:36Z","spotify_id":"6hWYl0NdPgNAOoreAvcqJ5","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x43fa1f7acfbbefb146649ce82ae03f08995f07293a93fdddd3be4b8b223cad58. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6hWYl0NdPgNAOoreAvcqJ5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hWYl0NdPgNAOoreAvcqJ5.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x43fa1f7acfbbefb146649ce82ae03f08995f07293a93fdddd3be4b8b223cad58","isrc":"SEYTP1505005","name":"Blue Notebook","registered_at":"2026-06-05T12:10:36Z","spotify_id":"6hWYl0NdPgNAOoreAvcqJ5","type":"track"}

Film Credits (Arr. For String Quartet)
type: MusicRecording
duration: PT3M45S
duration ms: 225200
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Ólafur Arnalds
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T18:27:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2c6fddd6b2d156cebf645abb8ddd50e041a19a83e6f7d32dc6489133a9eafe5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/24gIBICKJejWwyQefeToJf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24gIBICKJejWwyQefeToJf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe2c6fddd6b2d156cebf645abb8ddd50e041a19a83e6f7d32dc6489133a9eafe5","isrc":"SEYTP1505006","name":"Film Credits (Arr. For String Quartet)","registered_at":"2026-06-25T18:27:06Z","spotify_id":"24gIBICKJejWwyQefeToJf","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xe2c6fddd6b2d156cebf645abb8ddd50e041a19a83e6f7d32dc6489133a9eafe5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/24gIBICKJejWwyQefeToJf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24gIBICKJejWwyQefeToJf.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xe2c6fddd6b2d156cebf645abb8ddd50e041a19a83e6f7d32dc6489133a9eafe5","isrc":"SEYTP1505006","name":"Film Credits (Arr. For String Quartet)","registered_at":"2026-06-25T18:27:06Z","spotify_id":"24gIBICKJejWwyQefeToJf","type":"track"}

Breathe
type: MusicRecording
duration: PT6M36S
duration ms: 396986
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Luke Anthony
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505007

Mother's Theme
type: MusicRecording
duration: PT5M4S
duration ms: 304733
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Paul Frith
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T07:37:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9089826cc73f4a00d57ef16ed4cb6eeb3c4a6578fe6abcccde42c37da9b03a7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/954130
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1vpIyQZuOWVubqnGtU7lYC.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vpIyQZuOWVubqnGtU7lYC
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T20:41:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9089826cc73f4a00d57ef16ed4cb6eeb3c4a6578fe6abcccde42c37da9b03a7","isrc":"SEYTP1505008","name":"Mother's Theme","registered_at":"2026-06-17T07:37:44Z","spotify_id":"1vpIyQZuOWVubqnGtU7lYC","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xc9089826cc73f4a00d57ef16ed4cb6eeb3c4a6578fe6abcccde42c37da9b03a7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:41:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1vpIyQZuOWVubqnGtU7lYC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vpIyQZuOWVubqnGtU7lYC.
  date published: 2026-06-17T20:41:44Z
  text: {"copyright_id":"0xc9089826cc73f4a00d57ef16ed4cb6eeb3c4a6578fe6abcccde42c37da9b03a7","isrc":"SEYTP1505008","name":"Mother's Theme","registered_at":"2026-06-17T07:37:44Z","spotify_id":"1vpIyQZuOWVubqnGtU7lYC","type":"track"}

Heliopause
type: MusicRecording
duration: PT6M36S
duration ms: 396600
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: David Julyan
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505009

Blue Notebook
type: MusicRecording
duration: PT1M57S
duration ms: 117093
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Isobel Waller-Bridge
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T12:10:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43fa1f7acfbbefb146649ce82ae03f08995f07293a93fdddd3be4b8b223cad58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6hWYl0NdPgNAOoreAvcqJ5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hWYl0NdPgNAOoreAvcqJ5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x43fa1f7acfbbefb146649ce82ae03f08995f07293a93fdddd3be4b8b223cad58","isrc":"SEYTP1505005","name":"Blue Notebook","registered_at":"2026-06-05T12:10:36Z","spotify_id":"6hWYl0NdPgNAOoreAvcqJ5","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x43fa1f7acfbbefb146649ce82ae03f08995f07293a93fdddd3be4b8b223cad58. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6hWYl0NdPgNAOoreAvcqJ5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hWYl0NdPgNAOoreAvcqJ5.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x43fa1f7acfbbefb146649ce82ae03f08995f07293a93fdddd3be4b8b223cad58","isrc":"SEYTP1505005","name":"Blue Notebook","registered_at":"2026-06-05T12:10:36Z","spotify_id":"6hWYl0NdPgNAOoreAvcqJ5","type":"track"}

Chorale (Five)
type: MusicRecording
duration: PT4M12S
duration ms: 252213
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Peter Gregson
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:31:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x421e8a520321b753a7ed4b8c088699658586b4daeb681f7a1533830912c2f87c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0Cot8hd7mqzRBe1u4BVTCM.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Cot8hd7mqzRBe1u4BVTCM
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x421e8a520321b753a7ed4b8c088699658586b4daeb681f7a1533830912c2f87c","isrc":"SEYTP1505001","name":"Chorale (Five)","registered_at":"2026-06-07T19:31:45Z","spotify_id":"0Cot8hd7mqzRBe1u4BVTCM","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x421e8a520321b753a7ed4b8c088699658586b4daeb681f7a1533830912c2f87c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Cot8hd7mqzRBe1u4BVTCM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Cot8hd7mqzRBe1u4BVTCM.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x421e8a520321b753a7ed4b8c088699658586b4daeb681f7a1533830912c2f87c","isrc":"SEYTP1505001","name":"Chorale (Five)","registered_at":"2026-06-07T19:31:45Z","spotify_id":"0Cot8hd7mqzRBe1u4BVTCM","type":"track"}

For Then
type: MusicRecording
duration: PT3M36S
duration ms: 216853
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Alex Baranowski
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T19:24:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2yGNA0P1t951r8aSGDaPTJ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2yGNA0P1t951r8aSGDaPTJ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470","isrc":"SEYTP1505004","name":"For Then","registered_at":"2026-06-08T19:24:13Z","spotify_id":"2yGNA0P1t951r8aSGDaPTJ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2yGNA0P1t951r8aSGDaPTJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2yGNA0P1t951r8aSGDaPTJ.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xd6b63ba6fe440ce1de765ac4ef7b5830a90ccf966b575de315c7b89386c48470","isrc":"SEYTP1505004","name":"For Then","registered_at":"2026-06-08T19:24:13Z","spotify_id":"2yGNA0P1t951r8aSGDaPTJ","type":"track"}

Mother's Theme
type: MusicRecording
duration: PT5M4S
duration ms: 304733
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Paul Frith
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T07:37:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9089826cc73f4a00d57ef16ed4cb6eeb3c4a6578fe6abcccde42c37da9b03a7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/954130
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1vpIyQZuOWVubqnGtU7lYC.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vpIyQZuOWVubqnGtU7lYC
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T20:41:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9089826cc73f4a00d57ef16ed4cb6eeb3c4a6578fe6abcccde42c37da9b03a7","isrc":"SEYTP1505008","name":"Mother's Theme","registered_at":"2026-06-17T07:37:44Z","spotify_id":"1vpIyQZuOWVubqnGtU7lYC","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xc9089826cc73f4a00d57ef16ed4cb6eeb3c4a6578fe6abcccde42c37da9b03a7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:41:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1vpIyQZuOWVubqnGtU7lYC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vpIyQZuOWVubqnGtU7lYC.
  date published: 2026-06-17T20:41:44Z
  text: {"copyright_id":"0xc9089826cc73f4a00d57ef16ed4cb6eeb3c4a6578fe6abcccde42c37da9b03a7","isrc":"SEYTP1505008","name":"Mother's Theme","registered_at":"2026-06-17T07:37:44Z","spotify_id":"1vpIyQZuOWVubqnGtU7lYC","type":"track"}

Melodia (I)
type: MusicRecording
duration: PT2M14S
duration ms: 134520
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Jóhann Jóhannsson
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T01:07:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6293b19f4661b37e7848cfc293d40a7aab1f9d69ac22ff2061b10812c6013dcf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956351
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956351
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/21iQuXGBpUB5bQbRkz2Wud.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/21iQuXGBpUB5bQbRkz2Wud
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:38:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6293b19f4661b37e7848cfc293d40a7aab1f9d69ac22ff2061b10812c6013dcf","isrc":"SEYTP1505003","name":"Melodia (I)","registered_at":"2026-06-27T01:07:44Z","spotify_id":"21iQuXGBpUB5bQbRkz2Wud","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x6293b19f4661b37e7848cfc293d40a7aab1f9d69ac22ff2061b10812c6013dcf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/21iQuXGBpUB5bQbRkz2Wud.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/21iQuXGBpUB5bQbRkz2Wud.
  date published: 2026-07-02T11:38:34Z
  text: {"copyright_id":"0x6293b19f4661b37e7848cfc293d40a7aab1f9d69ac22ff2061b10812c6013dcf","isrc":"SEYTP1505003","name":"Melodia (I)","registered_at":"2026-06-27T01:07:44Z","spotify_id":"21iQuXGBpUB5bQbRkz2Wud","type":"track"}

Film Credits (Arr. For String Quartet)
type: MusicRecording
duration: PT3M45S
duration ms: 225200
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: Ólafur Arnalds
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T18:27:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2c6fddd6b2d156cebf645abb8ddd50e041a19a83e6f7d32dc6489133a9eafe5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/24gIBICKJejWwyQefeToJf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24gIBICKJejWwyQefeToJf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe2c6fddd6b2d156cebf645abb8ddd50e041a19a83e6f7d32dc6489133a9eafe5","isrc":"SEYTP1505006","name":"Film Credits (Arr. For String Quartet)","registered_at":"2026-06-25T18:27:06Z","spotify_id":"24gIBICKJejWwyQefeToJf","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xe2c6fddd6b2d156cebf645abb8ddd50e041a19a83e6f7d32dc6489133a9eafe5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/24gIBICKJejWwyQefeToJf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24gIBICKJejWwyQefeToJf.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xe2c6fddd6b2d156cebf645abb8ddd50e041a19a83e6f7d32dc6489133a9eafe5","isrc":"SEYTP1505006","name":"Film Credits (Arr. For String Quartet)","registered_at":"2026-06-25T18:27:06Z","spotify_id":"24gIBICKJejWwyQefeToJf","type":"track"}

Let Me Sleep
type: MusicRecording
duration: PT2M6S
duration ms: 126120
explicit: false
by artist: Iskra String Quartet
by artist: Iskra Strings
by artist: David Julyan
in album: Iskra
  type: MusicAlbum
  date published: 2015-01-02
isrc code: SEYTP1505002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T18:28:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e75e0e50f23f61518edf2291a41d0edfe29a38f41ea24d4c58a738ddce47776
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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Breathe
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by artist: Luke Anthony
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Heliopause
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Spirographs - Beatless Mix
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Spirographs - Radio Edit
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subject of: OpenTimestamps Proof of Existence
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Interiority
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Night Sky
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Origami
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by artist: Rae Morris
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Purpose
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by artist: Ghostpoet
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Deletia
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by artist: Mysie
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Egosystem
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Hallucinate
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Eschaton
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Transmit
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