Hadwyn
type: MusicGroup
popularity: 8
followers: 394
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9271f575afba20b00831436cb60aa150edb43e470fbd6ac11788d23c9ca60f80
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/750ddb60-31ef-4a38-8185-56447da70b51.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/750ddb60-31ef-4a38-8185-56447da70b51.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/750ddb60-31ef-4a38-8185-56447da70b51
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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 0x9271f575afba20b00831436cb60aa150edb43e470fbd6ac11788d23c9ca60f80. 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/750ddb60-31ef-4a38-8185-56447da70b51.json and https://artists.proofprofile.net/proofs/artist/750ddb60-31ef-4a38-8185-56447da70b51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Lying
  type: MusicAlbum
  date published: 2019-09-27
  track: Lying
    type: MusicRecording
    duration: PT4M0S
    duration ms: 240000
    explicit: false
    by artist: Hadwyn
    in album: Lying
      type: MusicAlbum
      date published: 2019-09-27
    isrc code: TCAEK1920353
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T14:40:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x02efd200e8508d90d7fdaadf8793e574bce61fc131a2fd5ca4ed8e0cbf78fb6f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957866
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957866
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEK1920353
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T14:54:25Z
    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 0x02efd200e8508d90d7fdaadf8793e574bce61fc131a2fd5ca4ed8e0cbf78fb6f. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/TCAEK1920353.
      date published: 2026-07-13T14:54:25Z
    audio: Lying
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.884
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.472
      additional property: Energy
        type: PropertyValue
        value: 0.34
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.576
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.007
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.106
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.586
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Letting Go
  type: MusicAlbum
  date published: 2019-11-01
  track: Letting Go
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217916
    explicit: false
    by artist: Hadwyn
    in album: Letting Go
      type: MusicAlbum
      date published: 2019-11-01
    isrc code: TCAEL1932306
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T14:46:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6c162477c3f2a06399877ec15721545e0180a41506a774b03d52bc50423a1149
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957867
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957867
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEL1932306
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T14:55:20Z
    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 0x6c162477c3f2a06399877ec15721545e0180a41506a774b03d52bc50423a1149. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/TCAEL1932306.
      date published: 2026-07-13T14:55:20Z
    audio: Letting Go
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 71.986
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.531
      additional property: Energy
        type: PropertyValue
        value: 0.286
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.687
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.51
      additional property: Liveness
        type: PropertyValue
        value: 0.08
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.059
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.812
      additional property: Key Name
      additional property: Mode Name
album: Human
album: Be Here Now
album: Letting Go (Extended Version)

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major

Human
type: MusicAlbum
date published: 2020-01-24

Be Here Now
type: MusicAlbum
date published: 2024-07-19

Letting Go (Extended Version)
type: MusicAlbum
date published: 2024-10-28