Mara Simpson
type: MusicGroup
genre: neoclassical
popularity: 20
followers: 1993
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2c57f8ec7e7fcf2a537078b2697feaf76c3d8f45a6569328f8fad51e4afeec5c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46b20149-0313-492e-b0b1-28ba37898b5e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46b20149-0313-492e-b0b1-28ba37898b5e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/46b20149-0313-492e-b0b1-28ba37898b5e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2c57f8ec7e7fcf2a537078b2697feaf76c3d8f45a6569328f8fad51e4afeec5c","name":"Mara Simpson","registered_at":"2026-06-14T11:50:31Z","symbol":"NIM0443962","token_address":"0xc985d7b7df99f331e7e6527287e1eea419e57645","type":"artist","uuid":"46b20149-0313-492e-b0b1-28ba37898b5e"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c57f8ec7e7fcf2a537078b2697feaf76c3d8f45a6569328f8fad51e4afeec5c. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46b20149-0313-492e-b0b1-28ba37898b5e.json and https://artists.proofprofile.net/proofs/artist/46b20149-0313-492e-b0b1-28ba37898b5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x2c57f8ec7e7fcf2a537078b2697feaf76c3d8f45a6569328f8fad51e4afeec5c","name":"Mara Simpson","registered_at":"2026-06-14T11:50:31Z","symbol":"NIM0443962","token_address":"0xc985d7b7df99f331e7e6527287e1eea419e57645","type":"artist","uuid":"46b20149-0313-492e-b0b1-28ba37898b5e"}
album: Lighthouse
  type: MusicAlbum
  date published: 2015-04-07
album: Keep Holding On
  type: MusicAlbum
  date published: 2016-02-19
album: Silent Woman
  type: MusicAlbum
  date published: 2016-04-08
album: Our Good Sides
  type: MusicAlbum
  date published: 2016-05-20
album: Our Good Sides
  type: MusicAlbum
  date published: 2016-05-20
album: Ghosts
  type: MusicAlbum
  date published: 2016-05-20
album: Our Good Sides
  type: MusicAlbum
  date published: 2018-10-05
album: Baby You're the One
  type: MusicAlbum
  date published: 2018-10-09
album: Rangi and Papa
  type: MusicAlbum
  date published: 2018-11-06
album: Home
  type: MusicAlbum
  date published: 2018-12-07
album: Don't Know Much
  type: MusicAlbum
  date published: 2019-01-18
album: 285 Days
  type: MusicAlbum
  date published: 2019-01-25
album: 285 Days
  type: MusicAlbum
  date published: 2019-01-25
album: Last to Know [Ellie Mason Remix (Voka Gentle)]
  type: MusicAlbum
  date published: 2019-05-03
album: Live at The Rose Hill
  type: MusicAlbum
  date published: 2019-08-09
album: Keep You in Light (Poppy Ackroyd remix)
  type: MusicAlbum
  date published: 2019-09-06
album: Keep You in Light (Poppy Ackroyd remix)
  type: MusicAlbum
  date published: 2019-09-06
album: Danny (AVA remix)
  type: MusicAlbum
  date published: 2019-09-27
album: 285 Days - Retold
  type: MusicAlbum
  date published: 2019-10-11
album: 285 Days - Retold
  type: MusicAlbum
  date published: 2019-10-11
album: Reason
  type: MusicAlbum
  date published: 2021-04-20
album: Reason
  type: MusicAlbum
  date published: 2021-04-20
album: In This Place
  type: MusicAlbum
  date published: 2021-07-13
album: In This Place
  type: MusicAlbum
  date published: 2021-07-13
album: Serena
  type: MusicAlbum
  date published: 2021-08-24
album: Serena
  type: MusicAlbum
  date published: 2021-08-24
album: In This Place
  type: MusicAlbum
  date published: 2021-09-24
album: In This Place
  type: MusicAlbum
  date published: 2021-09-24
album: Traquair (LAYERS ambient)
  type: MusicAlbum
  date published: 2022-03-15
album: Traquair (LAYERS ambient)
  type: MusicAlbum
  date published: 2022-03-15
album: Fault Lines (LAYERS piano + strings)
  type: MusicAlbum
  date published: 2022-03-29
album: Fault Lines (LAYERS piano + strings)
  type: MusicAlbum
  date published: 2022-03-29
album: Serena (LAYERS)
  type: MusicAlbum
  date published: 2022-04-12
album: Serena (LAYERS)
  type: MusicAlbum
  date published: 2022-04-12
album: LAYERS
  type: MusicAlbum
  date published: 2022-04-22
album: LAYERS
  type: MusicAlbum
  date published: 2022-04-22
album: Ropes
  type: MusicAlbum
  date published: 2023-10-17
album: Blue Hour (Original Soundtrack)
  type: MusicAlbum
  date published: 2024-01-23
album: February
  type: MusicAlbum
  date published: 2024-02-01
album: Mara Simpson
  type: MusicAlbum
  date published: 2024-03-20
album: Echo
  type: MusicAlbum
  date published: 2024-03-20
album: Blue Clay
  type: MusicAlbum
  date published: 2025-02-12
album: Stone Relief
  type: MusicAlbum
  date published: 2025-03-12
album: Fragile Sphere
  type: MusicAlbum
  date published: 2025-04-23
album: Living Matter
  type: MusicAlbum
  date published: 2025-05-30
track: Bristol
track: Ashridge
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249855
  explicit: false
  by artist: Alexandra Hamilton-Ayres
  by artist: Mara Simpson
  in album: Ciara
    type: MusicAlbum
    date published: 2021-11-26
  genre: neoclassical
  isrc code: QMDA62152335
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T08:08:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc0ea5692a8e3415f0451bd3aca81f5a8cf59426a9d1087572f668482ec5797a8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Ashridge
track: Up Over
track: Feel 3 - Mara Simpson rework

Bristol
type: MusicRecording
duration: PT3M50S
duration ms: 230000
explicit: false
by artist: Alexandra Hamilton-Ayres
by artist: Mara Simpson
in album: Ciara
  type: MusicAlbum
  date published: 2021-11-26
genre: neoclassical
isrc code: QMDA62152382
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T06:24:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3da143a9a0d5716a36b3ca65e5ee751578fa199c693b9bf74311dd8f5244ce19
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/QMDA62152382
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da143a9a0d5716a36b3ca65e5ee751578fa199c693b9bf74311dd8f5244ce19. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMDA62152382.
  date published: 2026-07-02T05:09:12Z
audio: Bristol
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.448
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.417
  additional property: Energy
    type: PropertyValue
    value: 0.075
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.633
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.332
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.495
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Up Over
type: MusicRecording
duration: PT4M27S
duration ms: 267692
explicit: false
by artist: Alexandra Hamilton-Ayres
by artist: Mara Simpson
in album: Up Over
  type: MusicAlbum
  date published: 2021-11-05
genre: neoclassical
isrc code: QMDA62152250
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:46:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a3dbf839440019ca5a49227844a080f0349131d175e278e177263769b3342d8
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/QMDA62152250
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3dbf839440019ca5a49227844a080f0349131d175e278e177263769b3342d8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA62152250.
  date published: 2026-07-08T08:56:20Z
audio: Up Over
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.513
  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: 0.204
  additional property: Energy
    type: PropertyValue
    value: 0.178
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.528
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.816
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.067
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.19
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Feel 3 - Mara Simpson rework
type: MusicRecording
duration: PT3M32S
duration ms: 212961
explicit: false
by artist: Alexandra Hamilton-Ayres
by artist: Mara Simpson
in album: RE:19-88
  type: MusicAlbum
  date published: 2019-11-15
genre: neoclassical
isrc code: QMBZ91929734
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:38:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4eda24ae7c68057cad06e6f149e6b063aa2ae55c0d480494cb5f273d652e515b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91929734
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eda24ae7c68057cad06e6f149e6b063aa2ae55c0d480494cb5f273d652e515b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMBZ91929734.
  date published: 2026-07-08T03:53:27Z
audio: Feel 3 - Mara Simpson rework
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.079
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.483
  additional property: Energy
    type: PropertyValue
    value: 0.401
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.709
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.933
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.079
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.311
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62152335

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ea5692a8e3415f0451bd3aca81f5a8cf59426a9d1087572f668482ec5797a8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMDA62152335.
date published: 2026-07-08T03:53:27Z

Ashridge
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 156.155
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.395
additional property: Energy
  type: PropertyValue
  value: 0.26
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.686
additional property: Instrumentalness
  type: PropertyValue
  value: 0.887
additional property: Liveness
  type: PropertyValue
  value: 0.332
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.339
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.3
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

Ashridge
type: MusicRecording
duration: PT4M9S
duration ms: 249855
explicit: false
by artist: Alexandra Hamilton-Ayres
by artist: Mara Simpson
in album: Ashridge
  type: MusicAlbum
  date published: 2021-11-19
genre: neoclassical
isrc code: QMDA62152335
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T08:08:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0ea5692a8e3415f0451bd3aca81f5a8cf59426a9d1087572f668482ec5797a8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62152335
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ea5692a8e3415f0451bd3aca81f5a8cf59426a9d1087572f668482ec5797a8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMDA62152335.
  date published: 2026-06-13T15:41:10Z
audio: Ashridge
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 156.155
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.395
  additional property: Energy
    type: PropertyValue
    value: 0.26
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.686
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.887
  additional property: Liveness
    type: PropertyValue
    value: 0.332
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.339
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.3
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor