Martin Nockalls
type: MusicGroup
popularity: 9
followers: 247
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1338b20a75c22ade7dc2937d0fdea3b8d5efad701fda9413b1f40741942c0240
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/397ddabc-2eaf-4cef-8170-9eb702ed5f0e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/397ddabc-2eaf-4cef-8170-9eb702ed5f0e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/397ddabc-2eaf-4cef-8170-9eb702ed5f0e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1338b20a75c22ade7dc2937d0fdea3b8d5efad701fda9413b1f40741942c0240","name":"Martin Nockalls","registered_at":"2026-06-16T09:32:46Z","symbol":"NIM1010150","token_address":"0x9b6dc60aebada642435b0157e0952fdbf4996739","type":"artist","uuid":"397ddabc-2eaf-4cef-8170-9eb702ed5f0e"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1338b20a75c22ade7dc2937d0fdea3b8d5efad701fda9413b1f40741942c0240. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/397ddabc-2eaf-4cef-8170-9eb702ed5f0e.json and https://artists.proofprofile.net/proofs/artist/397ddabc-2eaf-4cef-8170-9eb702ed5f0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1338b20a75c22ade7dc2937d0fdea3b8d5efad701fda9413b1f40741942c0240","name":"Martin Nockalls","registered_at":"2026-06-16T09:32:46Z","symbol":"NIM1010150","token_address":"0x9b6dc60aebada642435b0157e0952fdbf4996739","type":"artist","uuid":"397ddabc-2eaf-4cef-8170-9eb702ed5f0e"}
album: Sometimes...Slowly To The Heart (1)
  type: MusicAlbum
  date published: 2023-11-17
album: Smiles & Sentiments for Guitar
  type: MusicAlbum
  date published: 2022-02-11
album: Café Guitar Maestro 2 (18)
  type: MusicAlbum
  date published: 2020-12-09
  track: Right Here Waiting For You
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219747
    explicit: false
    by artist: Martin Nockalls
    in album: Café Guitar Maestro 2 (18)
      type: MusicAlbum
      date published: 2020-12-09
    isrc code: QMFME2088777
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-08-01T01:48:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcd097b79250dafb07ca8ae4346dffdb33f60bbe3b7d89936b05a0e152f1d8a25
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960497
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960497
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2088777
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-08-01T02:22:04Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd097b79250dafb07ca8ae4346dffdb33f60bbe3b7d89936b05a0e152f1d8a25. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2088777.
      date published: 2026-08-01T02:22:04Z
    audio: Right Here Waiting For You
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.918
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.537
      additional property: Energy
        type: PropertyValue
        value: 0.182
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.901
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.932
      additional property: Liveness
        type: PropertyValue
        value: 0.112
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.448
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.328
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Cafe Guitar Maestro
  type: MusicAlbum
  date published: 2020-01-31
  track: True Colours
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186895
    explicit: false
    by artist: Martin Nockalls
    in album: Cafe Guitar Maestro
      type: MusicAlbum
      date published: 2020-01-31
    isrc code: QM4TW2039238
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T10:30:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x19e2b5ef7623c8542f8ca964d55457b9211241059a83f7087ac847c77f69d108
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2039238
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e2b5ef7623c8542f8ca964d55457b9211241059a83f7087ac847c77f69d108. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2039238.
      date published: 2026-07-08T03:20:19Z
    audio: True Colours
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 151.026
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.468
      additional property: Energy
        type: PropertyValue
        value: 0.178
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.839
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.856
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Guitar - Life - Emotion
album: Guitar - Candlelight - Reveries
album: SixThree - Brass & Guitar Duo
album: Guitar Hands On
album: Guitar Landscapes
album: Guitar Portraits
album: Martin Nockalls - The Solo Album
album: Guitar Concerto - second movement - solo version
album: Amber Rose Guitar Duo At The Mill
album: Christmas With Amber Rose Guitar
album: Texts for Guitar & Piano

Liveness
type: PropertyValue
value: 0.09

Valence (Positivity)
type: PropertyValue
value: 0.323

Loudness (dB)
type: PropertyValue
value: -15.824

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Guitar - Life - Emotion
type: MusicAlbum
date published: 2018-12-21
track: You've Got A Friend
  type: MusicRecording
  duration: PT4M25S
  duration ms: 265593
  explicit: false
  by artist: Carole King
  by artist: Martin Nockalls
  in album: Guitar - Life - Emotion
    type: MusicAlbum
    date published: 2018-12-21
  genre: singer-songwriter
  genre: folk-rock
  isrc code: QM7281871678
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T03:28:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf665797c6876bc22f7ccced11460c87b733c77d194ba09bc8720c5d4f6c3a6d5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960506
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960506
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281871678
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T03:50:58Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf665797c6876bc22f7ccced11460c87b733c77d194ba09bc8720c5d4f6c3a6d5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281871678.
    date published: 2026-08-01T03:50:58Z
  audio: You've Got A Friend
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.826
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.588
    additional property: Energy
      type: PropertyValue
      value: 0.26
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0.871
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.914
    additional property: Liveness
      type: PropertyValue
      value: 0.145
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.414
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.632
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Love Song
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207375
  explicit: false
  by artist: Richard Vaughan
  by artist: Martin Nockalls
  in album: Guitar - Life - Emotion
    type: MusicAlbum
    date published: 2018-12-21
  isrc code: QM7281871744
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T18:59:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf2e84c99c620dc2143ed97ac56b24af65d945c0c991d9ce5b4e29eebbf0792ec
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960296
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960296
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281871744
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T19:11:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e84c99c620dc2143ed97ac56b24af65d945c0c991d9ce5b4e29eebbf0792ec. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281871744.
    date published: 2026-07-30T19:11:09Z
  audio: Love Song
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 82.055
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.506
    additional property: Energy
      type: PropertyValue
      value: 0.058
    additional property: Speechiness
      type: PropertyValue
      value: 0.075
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.913
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.271
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.872
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Arthur's Theme
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159522
  explicit: false
  by artist: Cristopher Cross
  by artist: Burt Bacharach
  by artist: Christopher Cross
  by artist: Martin Nockalls
  in album: Guitar - Life - Emotion
    type: MusicAlbum
    date published: 2018-12-21
  isrc code: QM7281871800
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T06:45:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4748b75b68fb43b4f6aabfcb7012f7bef78aa68e090647757836584375817be6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960220
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Arthur's Theme

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960220

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281871800

OTSTimestamp
type: PropertyValue
value: 2026-07-30T07:28:30Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4748b75b68fb43b4f6aabfcb7012f7bef78aa68e090647757836584375817be6. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281871800.
date published: 2026-07-30T07:28:30Z

Arthur's Theme
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 123.167
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.547
additional property: Energy
  type: PropertyValue
  value: 0.093
additional property: Speechiness
  type: PropertyValue
  value: 0.056
additional property: Acousticness
  type: PropertyValue
  value: 0.873
additional property: Instrumentalness
  type: PropertyValue
  value: 0.86
additional property: Liveness
  type: PropertyValue
  value: 0.131
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.384
additional property: Loudness (dB)
  type: PropertyValue
  value: -23.585
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Guitar - Candlelight - Reveries
type: MusicAlbum
date published: 2018-05-18
track: Alfie
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170000
  explicit: false
  by artist: Martin Nockalls
  in album: Guitar - Candlelight - Reveries
    type: MusicAlbum
    date published: 2018-05-18
  isrc code: QM4TX1809251
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T06:43:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8b0f1222ad5ef2d03c6959bcdb60765d774b15e6d89ba7496108b375c366035d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1809251
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0f1222ad5ef2d03c6959bcdb60765d774b15e6d89ba7496108b375c366035d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1809251.
    date published: 2026-07-08T03:20:19Z
  audio: Alfie
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 97.01
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
      value: 0.437
    additional property: Energy
      type: PropertyValue
      value: 0.096
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.967
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.913
    additional property: Liveness
      type: PropertyValue
      value: 0.162
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.243
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.898
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Song from a Secret Garden
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246371
  explicit: false
  by artist: Martin Nockalls
  in album: Guitar - Candlelight - Reveries
    type: MusicAlbum
    date published: 2018-05-18
  isrc code: QM4TX1809253
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T04:40:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x88aaa3a8266e3519c65171a4aea7fa30f3c9dcd3176dc0eff702acb0e78df912
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960348
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960348
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1809253
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T05:17:02Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aaa3a8266e3519c65171a4aea7fa30f3c9dcd3176dc0eff702acb0e78df912. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1809253.
    date published: 2026-07-31T05:17:02Z
  audio: Song from a Secret Garden
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.918
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.629
    additional property: Energy
      type: PropertyValue
      value: 0.072
    additional property: Speechiness
      type: PropertyValue
      value: 0.067
    additional property: Acousticness
      type: PropertyValue
      value: 0.967
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.921
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.341
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.618
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

SixThree - Brass & Guitar Duo
type: MusicAlbum
date published: 2017-11-30

Guitar Hands On
type: MusicAlbum
date published: 2017-07-21
track: Oblivion
  type: MusicRecording
  duration: PT5M8S
  duration ms: 308000
  explicit: false
  by artist: Astor Piazzolla
  by artist: Martin Nockalls
  in album: Guitar Hands On
    type: MusicAlbum
    date published: 2017-07-21
  isrc code: QM6N21735690
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T02:59:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x360754e3b9999b07b9520277a5c4acdf14333240b49e55ca3b8e93aaae90979e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735690
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360754e3b9999b07b9520277a5c4acdf14333240b49e55ca3b8e93aaae90979e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735690.
    date published: 2026-07-02T03:55:08Z
  audio: Oblivion
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.473
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.391
    additional property: Energy
      type: PropertyValue
      value: 0.13
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.941
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.917
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.076
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.762
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Home
  type: MusicRecording
  duration: PT5M22S
  duration ms: 322000
  explicit: false
  by artist: Andrew York
  by artist: Martin Nockalls
  in album: Guitar Hands On
    type: MusicAlbum
    date published: 2017-07-21
  isrc code: QM6N21735691
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T05:12:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2584a67ff53c05ab50f4193d38f2b81a2a362a61cee7972a0d8d9c3e99339065
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735691
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2584a67ff53c05ab50f4193d38f2b81a2a362a61cee7972a0d8d9c3e99339065. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735691.
    date published: 2026-07-08T03:20:19Z
  audio: Home
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.671
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.516
    additional property: Energy
      type: PropertyValue
      value: 0.041
    additional property: Speechiness
      type: PropertyValue
      value: 0.08
    additional property: Acousticness
      type: PropertyValue
      value: 0.96
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.855
    additional property: Liveness
      type: PropertyValue
      value: 0.058
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.421
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.682
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Milonga
  type: MusicRecording
  duration: PT5M26S
  duration ms: 326000
  explicit: false
  by artist: Jorge Cardoso
  by artist: Martin Nockalls
  in album: Guitar Hands On
    type: MusicAlbum
    date published: 2017-07-21
  isrc code: QM6N21735692
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T23:19:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7b896b55cc6763e95460fd2a35e1200064384fa23f0984be2414dcb6c07cedb3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960327
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960327
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Milonga
track: Eleanor Rigby
track: Squares Suspended
track: Schindler's List
track: Barcarolle
track: Fountain
track: As Her Love Fades
track: Without You
track: Bossa Riff
track: Tico-Tico no Fuba

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735692

OTSTimestamp
type: PropertyValue
value: 2026-07-31T00:26:26Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b896b55cc6763e95460fd2a35e1200064384fa23f0984be2414dcb6c07cedb3. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735692.
date published: 2026-07-31T00:26:26Z

Milonga
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 116.554
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.357
additional property: Energy
  type: PropertyValue
  value: 0.156
additional property: Speechiness
  type: PropertyValue
  value: 0.049
additional property: Acousticness
  type: PropertyValue
  value: 0.909
additional property: Instrumentalness
  type: PropertyValue
  value: 0.877
additional property: Liveness
  type: PropertyValue
  value: 0.086
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.164
additional property: Loudness (dB)
  type: PropertyValue
  value: -23.059
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Eleanor Rigby
type: MusicRecording
duration: PT3M1S
duration ms: 181173
explicit: false
by artist: John Lennon
by artist: Paul McCartney
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
genre: christmas
isrc code: QM6N21735693
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T17:24:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x25df4e0b37723afc3917eb4c6a117073889626c4ab062405fd9ba8bfcd0d223c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960288
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960288
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735693
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:41:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25df4e0b37723afc3917eb4c6a117073889626c4ab062405fd9ba8bfcd0d223c. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735693.
  date published: 2026-07-30T17:41:38Z
audio: Eleanor Rigby
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.213
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.577
  additional property: Energy
    type: PropertyValue
    value: 0.312
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.84
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.916
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.198
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.999
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Squares Suspended
type: MusicRecording
duration: PT3M8S
duration ms: 188000
explicit: false
by artist: Andrew York
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
isrc code: QM6N21735694
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:38:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0691348e50d6914ab698916a8a5b85cb0aca9420dffe90688f0f7e742d2f9886
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735694
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0691348e50d6914ab698916a8a5b85cb0aca9420dffe90688f0f7e742d2f9886. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735694.
  date published: 2026-07-31T15:59:18Z
audio: Squares Suspended
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.449
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.466
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.097
  additional property: Acousticness
    type: PropertyValue
    value: 0.902
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.497
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.42
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.012
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Schindler's List
type: MusicRecording
duration: PT3M36S
duration ms: 216653
explicit: false
by artist: John Williams
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
isrc code: QM6N21735695
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:30:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c05486c82119645785c562a93cb506ca132d9dc744cb5abec5353866bf17cfc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735695
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c05486c82119645785c562a93cb506ca132d9dc744cb5abec5353866bf17cfc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735695.
  date published: 2026-07-08T03:20:19Z
audio: Schindler's List
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.021
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.548
  additional property: Energy
    type: PropertyValue
    value: 0.058
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.911
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.194
  additional property: Liveness
    type: PropertyValue
    value: 0.064
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.207
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.611
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Barcarolle
type: MusicRecording
duration: PT3M31S
duration ms: 211866
explicit: false
by artist: Francis Kleynjans
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
isrc code: QM6N21735696
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:33:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5db91a96a4c02dba1d51de14ba43ac82eb692627bf0bc916a0677b77becac75
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735696
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5db91a96a4c02dba1d51de14ba43ac82eb692627bf0bc916a0677b77becac75. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735696.
  date published: 2026-07-31T15:20:15Z
audio: Barcarolle
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.103
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.418
  additional property: Energy
    type: PropertyValue
    value: 0.1
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.84
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.155
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.113
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Fountain
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Darragh O'Neill
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
isrc code: QM6N21735697
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T02:17:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7afd6357c33bf7d5835389c84e37f9c44050ae1b6189307e83e060bb9a52dd9c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960337
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960337
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735697
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:51:48Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afd6357c33bf7d5835389c84e37f9c44050ae1b6189307e83e060bb9a52dd9c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735697.
  date published: 2026-07-31T02:51:48Z
audio: Fountain
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.417
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.37
  additional property: Energy
    type: PropertyValue
    value: 0.316
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.808
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.949
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.576
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.676
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

As Her Love Fades
type: MusicRecording
duration: PT3M1S
duration ms: 181186
explicit: false
by artist: scott ouellette
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
isrc code: QM6N21735698
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:42:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a24452807d15f0d94ac9007a78f2be2f7c5e173c0ea02908ea9684400cf4860
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735698
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a24452807d15f0d94ac9007a78f2be2f7c5e173c0ea02908ea9684400cf4860. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735698.
  date published: 2026-07-31T02:19:15Z
audio: As Her Love Fades
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.476
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.496
  additional property: Energy
    type: PropertyValue
    value: 0.316
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.569
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.841
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.543
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.561
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Without You
type: MusicRecording
duration: PT3M24S
duration ms: 204000
explicit: false
by artist: Peter Ham
by artist: Tom Evans
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
isrc code: QM6N21735699
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:59:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa24e4d31a68e7f8c9a35380a217384ff374f09dbf65db3267f9077d711a0572e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735699
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24e4d31a68e7f8c9a35380a217384ff374f09dbf65db3267f9077d711a0572e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735699.
  date published: 2026-07-30T08:30:10Z
audio: Without You
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.295
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.471
  additional property: Energy
    type: PropertyValue
    value: 0.125
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.87
  additional property: Liveness
    type: PropertyValue
    value: 0.13
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.242
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.018
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bossa Riff
type: MusicRecording
duration: PT2M55S
duration ms: 175506
explicit: false
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
isrc code: QM6N21735700
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T00:31:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe880e70a9f2579aaae3e123b3c9ae4b8df9c97bef3764a24382cb4ff910a4901
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735700
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe880e70a9f2579aaae3e123b3c9ae4b8df9c97bef3764a24382cb4ff910a4901. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735700.
  date published: 2026-07-31T02:19:15Z
audio: Bossa Riff
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.549
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.411
  additional property: Energy
    type: PropertyValue
    value: 0.192
  additional property: Speechiness
    type: PropertyValue
    value: 0.094
  additional property: Acousticness
    type: PropertyValue
    value: 0.765
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.866
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.265
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.19
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Tico-Tico no Fuba
type: MusicRecording
duration: PT3M20S
duration ms: 200173
explicit: false
by artist: Zequinha De Abreu
by artist: Martin Nockalls
in album: Guitar Hands On
  type: MusicAlbum
  date published: 2017-07-21
isrc code: QM6N21735701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:13:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7133a2a812ccbe59c8e682eaabda1a6bf5916ac57e9054c166df57c8f43fe594
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735701
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7133a2a812ccbe59c8e682eaabda1a6bf5916ac57e9054c166df57c8f43fe594. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21735701.
  date published: 2026-07-08T03:20:19Z
audio: Tico-Tico no Fuba
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.642
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.459
  additional property: Energy
    type: PropertyValue
    value: 0.29
  additional property: Speechiness
    type: PropertyValue
    value: 0.085
  additional property: Acousticness
    type: PropertyValue
    value: 0.866
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.867
  additional property: Liveness
    type: PropertyValue
    value: 0.135
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.614
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.029
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Guitar Landscapes
type: MusicAlbum
date published: 2017-02-11

Guitar Portraits
type: MusicAlbum
date published: 2016-08-20
track: Canzone d'amore
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152000
  explicit: false
  by artist: Martin Nockalls
  in album: Guitar Portraits
    type: MusicAlbum
    date published: 2016-08-20
  isrc code: QMFMG1579702
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T23:00:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1550dc6e0b20bd9c0176781991703c01755c20e961606ec3d8527e298b99e574
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1579702
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1550dc6e0b20bd9c0176781991703c01755c20e961606ec3d8527e298b99e574. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1579702.
    date published: 2026-07-08T03:20:19Z
  audio: Canzone d'amore
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Martin Nockalls - The Solo Album
type: MusicAlbum
date published: 2016-01-08

Guitar Concerto - second movement - solo version
type: MusicAlbum
date published: 2016-01-08

Amber Rose Guitar Duo At The Mill
type: MusicAlbum
date published: 1994
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909fb26b3d4c1eeb0c9f6bcbebd9cf57afd0a36853f6f4f7fdc8b7a3424cd271. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560602344.
    date published: 2026-07-08T03:20:19Z
  audio: Tears In Heaven
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
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    additional property: Danceability
      type: PropertyValue
      value: 0.651
    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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track: Spanish Dance No. 2
  type: MusicRecording
  duration: PT5M20S
  duration ms: 320653
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  by artist: Martin Nockalls
  by artist: Steve Merrett
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    type: MusicAlbum
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2623a262a58a81ed9be01041bff9082c29f7812be5687cc1a9e5eb9d5077889. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560602345.
    date published: 2026-07-06T06:56:49Z
  audio: Spanish Dance No. 2
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: XR2 (Fiesta)
  type: MusicRecording
  duration: PT2M5S
  duration ms: 125533
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  by artist: Amber Rose Guitar Duo
  by artist: Martin Nockalls
  by artist: Steve Merrett
  in album: Amber Rose Guitar Duo At The Mill
    type: MusicAlbum
    date published: 1994
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: XR2 (Fiesta)

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960410

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560602347

OTSTimestamp
type: PropertyValue
value: 2026-07-31T13:50:38Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db298e3ea88664d7343f2bc0c0d3a38cde668564b06238d26f93ad7206ab253. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560602347.
date published: 2026-07-31T13:50:38Z

XR2 (Fiesta)
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additional property: Tempo (BPM)
  type: PropertyValue
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additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
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  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.423
additional property: Energy
  type: PropertyValue
  value: 0.262
additional property: Speechiness
  type: PropertyValue
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
  type: PropertyValue
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additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Christmas With Amber Rose Guitar
type: MusicAlbum
date published: 2011-10-14

Texts for Guitar & Piano
type: MusicAlbum
date published: 2016-12-30