Björg Blöndal’s C4THERINE
type: MusicGroup
popularity: 4
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc61dbecc2fb955cab077376366795b2aae80bc24c87379152b8533db440751a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f266760c-d743-4e00-9a2b-a3f3ab2a90d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f266760c-d743-4e00-9a2b-a3f3ab2a90d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f266760c-d743-4e00-9a2b-a3f3ab2a90d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbc61dbecc2fb955cab077376366795b2aae80bc24c87379152b8533db440751a","name":"Björg Blöndal’s C4THERINE","registered_at":"2026-06-21T14:08:48Z","symbol":"NIM1943292","token_address":"0x35bd46dd2a19fedb2a65c621707a308f347c05dc","type":"artist","uuid":"f266760c-d743-4e00-9a2b-a3f3ab2a90d1"}
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 0xbc61dbecc2fb955cab077376366795b2aae80bc24c87379152b8533db440751a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f266760c-d743-4e00-9a2b-a3f3ab2a90d1.json and https://artists.proofprofile.net/proofs/artist/f266760c-d743-4e00-9a2b-a3f3ab2a90d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xbc61dbecc2fb955cab077376366795b2aae80bc24c87379152b8533db440751a","name":"Björg Blöndal’s C4THERINE","registered_at":"2026-06-21T14:08:48Z","symbol":"NIM1943292","token_address":"0x35bd46dd2a19fedb2a65c621707a308f347c05dc","type":"artist","uuid":"f266760c-d743-4e00-9a2b-a3f3ab2a90d1"}
album: Dark Blue / Wild Blue
  type: MusicAlbum
  date published: 2025-08-22
  track: Dark Blue
    type: MusicRecording
    duration: PT1M18S
    duration ms: 78000
    explicit: false
    by artist: Björg Blöndal’s C4THERINE
    in album: Dark Blue / Wild Blue
      type: MusicAlbum
      date published: 2025-08-22
    isrc code: NOWT12507010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T23:31:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfd1cccdaf57c9df2315ecc4daecad237e03ac1ab11e21c05152655cea458dbda
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOWT12507010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0xfd1cccdaf57c9df2315ecc4daecad237e03ac1ab11e21c05152655cea458dbda. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NOWT12507010.
      date published: 2026-07-06T01:26:17Z
    audio: Dark Blue
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.023
      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: 0.284
      additional property: Energy
        type: PropertyValue
        value: 0.027
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.975
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.77
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.11
      additional property: Loudness (dB)
        type: PropertyValue
        value: -26.951
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Wild Blue
    type: MusicRecording
    duration: PT5M15S
    duration ms: 315000
    explicit: false
    by artist: Björg Blöndal’s C4THERINE
    in album: Dark Blue / Wild Blue
      type: MusicAlbum
      date published: 2025-08-22
    isrc code: NOWT12507020
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:32:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x057991bd4d298db5625c26a3cc549a4ddb7f4dc018f470c3e2f417e7cbbc88aa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958838
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958838
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOWT12507020
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:35:32Z
    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 0x057991bd4d298db5625c26a3cc549a4ddb7f4dc018f470c3e2f417e7cbbc88aa. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:35:32Z), 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/NOWT12507020.
      date published: 2026-07-20T09:35:32Z
    audio: Wild Blue
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.071
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.482
      additional property: Energy
        type: PropertyValue
        value: 0.335
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.696
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.358
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.083
      additional property: Key Name
      additional property: Mode Name
album: Eikosiheptaphobia
album: Wild Blue Yonder

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Eikosiheptaphobia
type: MusicAlbum
date published: 2025-09-26

Wild Blue Yonder
type: MusicAlbum
date published: 2025-10-24