Regina Spektor
type: MusicGroup
popularity: 62
followers: 1432193
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41b3e6714a3d187049673ed09157e82fb3d4b48354eccc8b9d2fb7ea9b230a79
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/b7ce44f7-96f8-4dc0-8abb-edf28b73c419.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7ce44f7-96f8-4dc0-8abb-edf28b73c419.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7ce44f7-96f8-4dc0-8abb-edf28b73c419
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x41b3e6714a3d187049673ed09157e82fb3d4b48354eccc8b9d2fb7ea9b230a79","name":"Regina Spektor","registered_at":"2026-06-12T08:07:46Z","symbol":"NIM0237413","token_address":"0x703d4beeb484c9da93872c5316193decc0c9c1a3","type":"artist","uuid":"b7ce44f7-96f8-4dc0-8abb-edf28b73c419"}
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 0x41b3e6714a3d187049673ed09157e82fb3d4b48354eccc8b9d2fb7ea9b230a79. 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/b7ce44f7-96f8-4dc0-8abb-edf28b73c419.json and https://artists.proofprofile.net/proofs/artist/b7ce44f7-96f8-4dc0-8abb-edf28b73c419.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x41b3e6714a3d187049673ed09157e82fb3d4b48354eccc8b9d2fb7ea9b230a79","name":"Regina Spektor","registered_at":"2026-06-12T08:07:46Z","symbol":"NIM0237413","token_address":"0x703d4beeb484c9da93872c5316193decc0c9c1a3","type":"artist","uuid":"b7ce44f7-96f8-4dc0-8abb-edf28b73c419"}
album: Begin to Hope (Special Edition)
  type: MusicAlbum
  date published: 2006-06-13
  track: Samson
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189506
    explicit: false
    by artist: Regina Spektor
    in album: Begin to Hope (Special Edition)
      type: MusicAlbum
      date published: 2006-06-13
    isrc code: USWB10601621
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T11:08:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x157c00935504785de1597824d8df6e0984eba388070b8c14b6519c1abb445259
    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/2bbhyUWJ5VjdfI3P4PRLu2.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2bbhyUWJ5VjdfI3P4PRLu2
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T15:41:10Z
    additional property: OTSCanonicalRecord
    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 0x157c00935504785de1597824d8df6e0984eba388070b8c14b6519c1abb445259. 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/2bbhyUWJ5VjdfI3P4PRLu2.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/2bbhyUWJ5VjdfI3P4PRLu2.
      date published: 2026-06-13T15:41:10Z
album: Remember Us to Life
  type: MusicAlbum
  date published: 2016-09-30
  track: Grand Hotel
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184666
    explicit: false
    by artist: Regina Spektor
    in album: Remember Us to Life
      type: MusicAlbum
      date published: 2016-09-30
    isrc code: USWB11601203
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-05T21:55:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x92f3c5cfb540218091717b4f9c969042736890af3bf69f9a1da1fb5b56676d6e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953536
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/953536
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/2bv5aQIuutB88mNztwmtQs.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2bv5aQIuutB88mNztwmtQs
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T17:25:41Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x92f3c5cfb540218091717b4f9c969042736890af3bf69f9a1da1fb5b56676d6e","isrc":"USWB11601203","name":"Grand Hotel","registered_at":"2026-06-05T21:55:51Z","spotify_id":"2bv5aQIuutB88mNztwmtQs","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 0x92f3c5cfb540218091717b4f9c969042736890af3bf69f9a1da1fb5b56676d6e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2bv5aQIuutB88mNztwmtQs.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/2bv5aQIuutB88mNztwmtQs.
      date published: 2026-06-13T17:25:41Z
      text: {"copyright_id":"0x92f3c5cfb540218091717b4f9c969042736890af3bf69f9a1da1fb5b56676d6e","isrc":"USWB11601203","name":"Grand Hotel","registered_at":"2026-06-05T21:55:51Z","spotify_id":"2bv5aQIuutB88mNztwmtQs","type":"track"}
album: Far
  type: MusicAlbum
  date published: 2009-06-19
  track: Eet
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230866
    explicit: false
    by artist: Regina Spektor
    in album: Far
      type: MusicAlbum
      date published: 2009-06-19
    isrc code: USWB10901895
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T08:22:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x571914b0efaa8df05448feb382a02f4e43811b6acf51af165744b3ab2a560556
    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/0N9WhEz6DiBDvBxa6uJCTY.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0N9WhEz6DiBDvBxa6uJCTY
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T15:41:10Z
    additional property: OTSCanonicalRecord
    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 0x571914b0efaa8df05448feb382a02f4e43811b6acf51af165744b3ab2a560556. 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/0N9WhEz6DiBDvBxa6uJCTY.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/0N9WhEz6DiBDvBxa6uJCTY.
      date published: 2026-06-13T15:41:10Z
  track: Laughing With
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194413
    explicit: false
    by artist: Regina Spektor
    in album: Far
      type: MusicAlbum
      date published: 2009-06-19
    isrc code: USWB10901319
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T13:48:09+00:00
    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
album: The Call
track: The Call - Soundtrack
track: Samson
track: Eet
track: Laughing With
track: Just A Memory
track: Grand Hotel
track: Two Birds
track: Dear Theodosia (feat. Ben Folds)
track: Balloon Girl - 2022 Mix
track: Birdsong - 2022 Mix
track: Left Hand Song
track: Real Love
track: Dance Anthem of the 80's

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf6303fe2a492fd3c42da54c10b0c151a5f456a4463c463e025efcebe035a49c9

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/26COgYlbcouIcJo3nprpox.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/26COgYlbcouIcJo3nprpox

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

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xf6303fe2a492fd3c42da54c10b0c151a5f456a4463c463e025efcebe035a49c9","isrc":"USWB10901319","name":"Laughing With","registered_at":"2026-06-04T13:48:09Z","spotify_id":"26COgYlbcouIcJo3nprpox","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 0xf6303fe2a492fd3c42da54c10b0c151a5f456a4463c463e025efcebe035a49c9. 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/26COgYlbcouIcJo3nprpox.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/26COgYlbcouIcJo3nprpox.
date published: 2026-06-13T15:41:10Z
text: {"copyright_id":"0xf6303fe2a492fd3c42da54c10b0c151a5f456a4463c463e025efcebe035a49c9","isrc":"USWB10901319","name":"Laughing With","registered_at":"2026-06-04T13:48:09Z","spotify_id":"26COgYlbcouIcJo3nprpox","type":"track"}

The Call
type: MusicAlbum
date published: 1970-01-01

The Call - Soundtrack
type: MusicRecording
duration: PT3M7S
duration ms: 187533
explicit: false
by artist: Regina Spektor
in album: Disney Box Office Hits
  type: MusicAlbum
  date published: 2008-01-01
isrc code: USWB10902046
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-01T20:02:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5318418bd7c507d38c3a16cafafa16204420508adf663eecbaaf81f82f28dffd
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/341863z079BT4EFPiSw9DP.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/341863z079BT4EFPiSw9DP
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5318418bd7c507d38c3a16cafafa16204420508adf663eecbaaf81f82f28dffd","isrc":"USWB10902046","name":"The Call - Soundtrack","registered_at":"2026-06-01T20:02:48Z","spotify_id":"341863z079BT4EFPiSw9DP","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 0x5318418bd7c507d38c3a16cafafa16204420508adf663eecbaaf81f82f28dffd. 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/341863z079BT4EFPiSw9DP.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/341863z079BT4EFPiSw9DP.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x5318418bd7c507d38c3a16cafafa16204420508adf663eecbaaf81f82f28dffd","isrc":"USWB10902046","name":"The Call - Soundtrack","registered_at":"2026-06-01T20:02:48Z","spotify_id":"341863z079BT4EFPiSw9DP","type":"track"}

Samson
type: MusicRecording
duration: PT3M9S
duration ms: 189506
explicit: false
by artist: Regina Spektor
in album: Begin to Hope (Special Edition)
  type: MusicAlbum
  date published: 2006-06-13
isrc code: USWB10601621
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T11:08:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x157c00935504785de1597824d8df6e0984eba388070b8c14b6519c1abb445259
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/2bbhyUWJ5VjdfI3P4PRLu2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2bbhyUWJ5VjdfI3P4PRLu2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
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 0x157c00935504785de1597824d8df6e0984eba388070b8c14b6519c1abb445259. 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/2bbhyUWJ5VjdfI3P4PRLu2.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/2bbhyUWJ5VjdfI3P4PRLu2.
  date published: 2026-06-13T15:41:10Z

Eet
type: MusicRecording
duration: PT3M50S
duration ms: 230866
explicit: false
by artist: Regina Spektor
in album: Far
  type: MusicAlbum
  date published: 2009-06-19
isrc code: USWB10901895
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T08:22:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x571914b0efaa8df05448feb382a02f4e43811b6acf51af165744b3ab2a560556
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/0N9WhEz6DiBDvBxa6uJCTY.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0N9WhEz6DiBDvBxa6uJCTY
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
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 0x571914b0efaa8df05448feb382a02f4e43811b6acf51af165744b3ab2a560556. 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/0N9WhEz6DiBDvBxa6uJCTY.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/0N9WhEz6DiBDvBxa6uJCTY.
  date published: 2026-06-13T15:41:10Z

Laughing With
type: MusicRecording
duration: PT3M14S
duration ms: 194413
explicit: false
by artist: Regina Spektor
in album: Far
  type: MusicAlbum
  date published: 2009-06-19
isrc code: USWB10901319
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T13:48:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6303fe2a492fd3c42da54c10b0c151a5f456a4463c463e025efcebe035a49c9
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/26COgYlbcouIcJo3nprpox.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/26COgYlbcouIcJo3nprpox
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf6303fe2a492fd3c42da54c10b0c151a5f456a4463c463e025efcebe035a49c9","isrc":"USWB10901319","name":"Laughing With","registered_at":"2026-06-04T13:48:09Z","spotify_id":"26COgYlbcouIcJo3nprpox","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 0xf6303fe2a492fd3c42da54c10b0c151a5f456a4463c463e025efcebe035a49c9. 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/26COgYlbcouIcJo3nprpox.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/26COgYlbcouIcJo3nprpox.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xf6303fe2a492fd3c42da54c10b0c151a5f456a4463c463e025efcebe035a49c9","isrc":"USWB10901319","name":"Laughing With","registered_at":"2026-06-04T13:48:09Z","spotify_id":"26COgYlbcouIcJo3nprpox","type":"track"}

Just A Memory
type: MusicRecording
duration: PT3M56S
duration ms: 236794
explicit: false
by artist: ODESZA
by artist: Regina Spektor
in album: A Moment Apart
  type: MusicAlbum
  date published: 2017-09-08
isrc code: GBCFB1700216
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T15:43:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d24cb3db08d17a243d49f196e2360042dfe8bddd8aa3795775c94b3dfdd287c
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/0KtzMx1GbkkPyA2TQceHoM.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0KtzMx1GbkkPyA2TQceHoM
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d24cb3db08d17a243d49f196e2360042dfe8bddd8aa3795775c94b3dfdd287c","isrc":"GBCFB1700216","name":"Just A Memory","registered_at":"2026-06-04T15:43:28Z","spotify_id":"0KtzMx1GbkkPyA2TQceHoM","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 0x7d24cb3db08d17a243d49f196e2360042dfe8bddd8aa3795775c94b3dfdd287c. 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/0KtzMx1GbkkPyA2TQceHoM.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/0KtzMx1GbkkPyA2TQceHoM.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x7d24cb3db08d17a243d49f196e2360042dfe8bddd8aa3795775c94b3dfdd287c","isrc":"GBCFB1700216","name":"Just A Memory","registered_at":"2026-06-04T15:43:28Z","spotify_id":"0KtzMx1GbkkPyA2TQceHoM","type":"track"}

Grand Hotel
type: MusicRecording
duration: PT3M4S
duration ms: 184666
explicit: false
by artist: Regina Spektor
in album: Remember Us to Life
  type: MusicAlbum
  date published: 2016-09-30
isrc code: USWB11601203
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T21:55:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92f3c5cfb540218091717b4f9c969042736890af3bf69f9a1da1fb5b56676d6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2bv5aQIuutB88mNztwmtQs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2bv5aQIuutB88mNztwmtQs
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x92f3c5cfb540218091717b4f9c969042736890af3bf69f9a1da1fb5b56676d6e","isrc":"USWB11601203","name":"Grand Hotel","registered_at":"2026-06-05T21:55:51Z","spotify_id":"2bv5aQIuutB88mNztwmtQs","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 0x92f3c5cfb540218091717b4f9c969042736890af3bf69f9a1da1fb5b56676d6e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2bv5aQIuutB88mNztwmtQs.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/2bv5aQIuutB88mNztwmtQs.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x92f3c5cfb540218091717b4f9c969042736890af3bf69f9a1da1fb5b56676d6e","isrc":"USWB11601203","name":"Grand Hotel","registered_at":"2026-06-05T21:55:51Z","spotify_id":"2bv5aQIuutB88mNztwmtQs","type":"track"}

Just A Memory
type: MusicRecording
duration: PT3M56S
duration ms: 236794
explicit: false
by artist: ODESZA
by artist: Regina Spektor
in album: A Moment Apart (Deluxe Edition)
  type: MusicAlbum
  date published: 2018-11-30
isrc code: GBCFB1700216
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T15:43:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d24cb3db08d17a243d49f196e2360042dfe8bddd8aa3795775c94b3dfdd287c
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/0mfSivZmglC3Hfn0NzssOY.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0mfSivZmglC3Hfn0NzssOY
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d24cb3db08d17a243d49f196e2360042dfe8bddd8aa3795775c94b3dfdd287c","isrc":"GBCFB1700216","name":"Just A Memory","registered_at":"2026-06-04T15:43:28Z","spotify_id":"0mfSivZmglC3Hfn0NzssOY","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 0x7d24cb3db08d17a243d49f196e2360042dfe8bddd8aa3795775c94b3dfdd287c. 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/0mfSivZmglC3Hfn0NzssOY.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/0mfSivZmglC3Hfn0NzssOY.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x7d24cb3db08d17a243d49f196e2360042dfe8bddd8aa3795775c94b3dfdd287c","isrc":"GBCFB1700216","name":"Just A Memory","registered_at":"2026-06-04T15:43:28Z","spotify_id":"0mfSivZmglC3Hfn0NzssOY","type":"track"}

Two Birds
type: MusicRecording
duration: PT3M15S
duration ms: 195840
explicit: false
by artist: Regina Spektor
in album: TikTok Hits 2022
  type: MusicAlbum
  date published: 2022-02-11
isrc code: USWB10901899
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:51:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd57792cc79129d70dd1a4d1bc7b2dc04669dcdef3db417683ce69af7eee60cc7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5cCEZOnHB7iyU1xeyOqCaF.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5cCEZOnHB7iyU1xeyOqCaF
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd57792cc79129d70dd1a4d1bc7b2dc04669dcdef3db417683ce69af7eee60cc7","isrc":"USWB10901899","name":"Two Birds","registered_at":"2026-06-07T12:51:40Z","spotify_id":"5cCEZOnHB7iyU1xeyOqCaF","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 0xd57792cc79129d70dd1a4d1bc7b2dc04669dcdef3db417683ce69af7eee60cc7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5cCEZOnHB7iyU1xeyOqCaF.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/5cCEZOnHB7iyU1xeyOqCaF.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0xd57792cc79129d70dd1a4d1bc7b2dc04669dcdef3db417683ce69af7eee60cc7","isrc":"USWB10901899","name":"Two Birds","registered_at":"2026-06-07T12:51:40Z","spotify_id":"5cCEZOnHB7iyU1xeyOqCaF","type":"track"}

Dear Theodosia (feat. Ben Folds)
type: MusicRecording
duration: PT2M25S
duration ms: 145786
explicit: false
by artist: Regina Spektor
by artist: Ben Folds
in album: The Hamilton Mixtape
  type: MusicAlbum
  date published: 2016-12-02
isrc code: USAT21603220
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T11:01:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x403a9fa6b1e81ae50ccd502cc9302623b818c4137f9bc12721e3c453be87bb4e
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/1fq4k7G5kYqUvKIuEmFAAo.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1fq4k7G5kYqUvKIuEmFAAo
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x403a9fa6b1e81ae50ccd502cc9302623b818c4137f9bc12721e3c453be87bb4e","isrc":"USAT21603220","name":"Dear Theodosia (feat. Ben Folds)","registered_at":"2026-06-04T11:01:46Z","spotify_id":"1fq4k7G5kYqUvKIuEmFAAo","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 0x403a9fa6b1e81ae50ccd502cc9302623b818c4137f9bc12721e3c453be87bb4e. 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/1fq4k7G5kYqUvKIuEmFAAo.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/1fq4k7G5kYqUvKIuEmFAAo.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x403a9fa6b1e81ae50ccd502cc9302623b818c4137f9bc12721e3c453be87bb4e","isrc":"USAT21603220","name":"Dear Theodosia (feat. Ben Folds)","registered_at":"2026-06-04T11:01:46Z","spotify_id":"1fq4k7G5kYqUvKIuEmFAAo","type":"track"}

Balloon Girl - 2022 Mix
type: MusicRecording
duration: PT3M3S
duration ms: 183879
explicit: false
by artist: Alex Heffes
by artist: Regina Spektor
in album: Face To Face (2022 Mix)
  type: MusicAlbum
  date published: 2012-10-07
isrc code: US23A1551340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T07:58:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebaf88aff08ea33405cfed6d4c33586d89c9a3fa7014a819091d7f13c4cebd8e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957120
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0kvqLNVA9VBJ8xxz0RvOjw.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0kvqLNVA9VBJ8xxz0RvOjw
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xebaf88aff08ea33405cfed6d4c33586d89c9a3fa7014a819091d7f13c4cebd8e","isrc":"US23A1551340","name":"Balloon Girl - 2022 Mix","registered_at":"2026-06-25T07:58:09Z","spotify_id":"0kvqLNVA9VBJ8xxz0RvOjw","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 0xebaf88aff08ea33405cfed6d4c33586d89c9a3fa7014a819091d7f13c4cebd8e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0kvqLNVA9VBJ8xxz0RvOjw.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/0kvqLNVA9VBJ8xxz0RvOjw.
  date published: 2026-07-08T03:22:41Z
  text: {"copyright_id":"0xebaf88aff08ea33405cfed6d4c33586d89c9a3fa7014a819091d7f13c4cebd8e","isrc":"US23A1551340","name":"Balloon Girl - 2022 Mix","registered_at":"2026-06-25T07:58:09Z","spotify_id":"0kvqLNVA9VBJ8xxz0RvOjw","type":"track"}

Birdsong - 2022 Mix
type: MusicRecording
duration: PT3M10S
duration ms: 190974
explicit: false
by artist: Alex Heffes
by artist: Regina Spektor
in album: Face To Face (2022 Mix)
  type: MusicAlbum
  date published: 2012-10-07
isrc code: US23A1551344
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T22:32:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a5924e2b4f01a46c8e24623f85055331d10830850019578309aec3c7eed5b9a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957124
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0byNaY1lJ9zfAKiLh9ASah.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0byNaY1lJ9zfAKiLh9ASah
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a5924e2b4f01a46c8e24623f85055331d10830850019578309aec3c7eed5b9a","isrc":"US23A1551344","name":"Birdsong - 2022 Mix","registered_at":"2026-06-21T22:32:04Z","spotify_id":"0byNaY1lJ9zfAKiLh9ASah","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
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Balloon Girl - 2022 Mix
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subject of: OpenTimestamps Proof of Existence
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Birdsong - 2022 Mix
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subject of: OpenTimestamps Proof of Existence
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Left Hand Song
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Real Love
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subject of: OpenTimestamps Proof of Existence
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Real Love
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Real Love
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Real Love
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subject of: OpenTimestamps Proof of Existence
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Dance Anthem of the 80's
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Laughing With
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