CERULEAN SAPPHIRE
type: MusicGroup
genre: shoegaze
popularity: 8
followers: 166
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d39dbd12159b482fe8772c1f1db9210bfce3f306b661b9c169678c86b8699ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95fe8807-294c-4438-9cbf-10369f3bdd35.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95fe8807-294c-4438-9cbf-10369f3bdd35.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/95fe8807-294c-4438-9cbf-10369f3bdd35
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d39dbd12159b482fe8772c1f1db9210bfce3f306b661b9c169678c86b8699ac","name":"CERULEAN SAPPHIRE","registered_at":"2026-06-17T18:01:11Z","symbol":"NIM1474928","token_address":"0xb3c5886815acefa345e91724586fdd79860f2249","type":"artist","uuid":"95fe8807-294c-4438-9cbf-10369f3bdd35"}
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 0x2d39dbd12159b482fe8772c1f1db9210bfce3f306b661b9c169678c86b8699ac. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95fe8807-294c-4438-9cbf-10369f3bdd35.json and https://artists.proofprofile.net/proofs/artist/95fe8807-294c-4438-9cbf-10369f3bdd35.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x2d39dbd12159b482fe8772c1f1db9210bfce3f306b661b9c169678c86b8699ac","name":"CERULEAN SAPPHIRE","registered_at":"2026-06-17T18:01:11Z","symbol":"NIM1474928","token_address":"0xb3c5886815acefa345e91724586fdd79860f2249","type":"artist","uuid":"95fe8807-294c-4438-9cbf-10369f3bdd35"}
album: ocean blue letter
  type: MusicAlbum
  date published: 2024-11-29
  track: ocean blue letter
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220032
    explicit: false
    by artist: CERULEAN SAPPHIRE
    in album: ocean blue letter
      type: MusicAlbum
      date published: 2024-11-29
    genre: shoegaze
    isrc code: QZZ7N2437864
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:32:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x689033af348031f45ddc904e9a2470a3954f0f555e731408066b1069b2dd44a7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7N2437864
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x689033af348031f45ddc904e9a2470a3954f0f555e731408066b1069b2dd44a7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7N2437864.
      date published: 2026-07-05T18:48:28Z
    audio: ocean blue letter
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.951
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.582
      additional property: Energy
        type: PropertyValue
        value: 0.515
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.597
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.868
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.388
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.123
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: dried roses
  type: MusicAlbum
  date published: 2025-02-07
album: into soft summer rain
  type: MusicAlbum
  date published: 2025-05-02
album: june, dream
  type: MusicAlbum
  date published: 2025-05-30
album: soft attention
  type: MusicAlbum
  date published: 2025-07-02