CROWN HEAD
type: MusicGroup
description: Crown Head () is a headland forming the east side of Palmer Bay on the north coast of Coronation Island, in the South Orkney Islands. It was first seen in the course of the joint cruise by Captain Geo
popularity: 7
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x074b0c674d3dceea45c48b2640604a1af0e5d4f50f86ee99055927edd3cfe83a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b7f7cdf-a216-4f72-bebc-6f73e155bef4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b7f7cdf-a216-4f72-bebc-6f73e155bef4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9b7f7cdf-a216-4f72-bebc-6f73e155bef4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x074b0c674d3dceea45c48b2640604a1af0e5d4f50f86ee99055927edd3cfe83a","name":"CROWN HEAD","registered_at":"2026-06-20T03:28:00Z","symbol":"NIM1501401","token_address":"0xae574b5300e09db3e0227412e5af563b89a9721f","type":"artist","uuid":"9b7f7cdf-a216-4f72-bebc-6f73e155bef4"}
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 0x074b0c674d3dceea45c48b2640604a1af0e5d4f50f86ee99055927edd3cfe83a. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b7f7cdf-a216-4f72-bebc-6f73e155bef4.json and https://artists.proofprofile.net/proofs/artist/9b7f7cdf-a216-4f72-bebc-6f73e155bef4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0x074b0c674d3dceea45c48b2640604a1af0e5d4f50f86ee99055927edd3cfe83a","name":"CROWN HEAD","registered_at":"2026-06-20T03:28:00Z","symbol":"NIM1501401","token_address":"0xae574b5300e09db3e0227412e5af563b89a9721f","type":"artist","uuid":"9b7f7cdf-a216-4f72-bebc-6f73e155bef4"}
album: Hidden
  type: MusicAlbum
  date published: 2025-05-20
album: 鬼灯
  type: MusicAlbum
  date published: 2025-07-03
album: ブルーシンドローム
  type: MusicAlbum
  date published: 2025-09-24
  track: ブルーシンドローム
    type: MusicRecording
    duration: PT3M20S
    duration ms: 200000
    explicit: false
    by artist: CROWN HEAD
    in album: ブルーシンドローム
      type: MusicAlbum
      date published: 2025-09-24
    isrc code: JPPO02503126
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T16:31:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x85860b3b91dd05be612d6e13ecd75022433652e0bff3e9041750de6d0533c54f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958444
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02503126
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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 0x85860b3b91dd05be612d6e13ecd75022433652e0bff3e9041750de6d0533c54f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPPO02503126.
      date published: 2026-07-17T19:12:23Z
    audio: ブルーシンドローム
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 151.967
      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: 0.456
      additional property: Energy
        type: PropertyValue
        value: 0.88
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.013
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.387
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.439
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.075
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Cheese/＋LOVE
  type: MusicAlbum
  date published: 2025-10-22