First Day of Spring
type: MusicGroup
popularity: 4
followers: 239
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7afefcdd0eb659f77cece258b25ac9d3dd7db8eeecc1ac1decb391331ccde9a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c7b7d81a-4da7-4368-b03a-44b5748ae8c9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c7b7d81a-4da7-4368-b03a-44b5748ae8c9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c7b7d81a-4da7-4368-b03a-44b5748ae8c9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7afefcdd0eb659f77cece258b25ac9d3dd7db8eeecc1ac1decb391331ccde9a9","name":"First Day of Spring","registered_at":"2026-06-20T21:37:44Z","symbol":"NIM1723096","token_address":"0xda13fc303cd7a3eb7ec99eca7b9fb087c210963f","type":"artist","uuid":"c7b7d81a-4da7-4368-b03a-44b5748ae8c9"}
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 0x7afefcdd0eb659f77cece258b25ac9d3dd7db8eeecc1ac1decb391331ccde9a9. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7b7d81a-4da7-4368-b03a-44b5748ae8c9.json and https://artists.proofprofile.net/proofs/artist/c7b7d81a-4da7-4368-b03a-44b5748ae8c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x7afefcdd0eb659f77cece258b25ac9d3dd7db8eeecc1ac1decb391331ccde9a9","name":"First Day of Spring","registered_at":"2026-06-20T21:37:44Z","symbol":"NIM1723096","token_address":"0xda13fc303cd7a3eb7ec99eca7b9fb087c210963f","type":"artist","uuid":"c7b7d81a-4da7-4368-b03a-44b5748ae8c9"}
album: Stupid
  type: MusicAlbum
  date published: 2022-06-17
album: Stupid
  type: MusicAlbum
  date published: 2022-06-17
album: Days
  type: MusicAlbum
  date published: 2022-07-15
album: Moon Boy
  type: MusicAlbum
  date published: 2023-01-06
  track: Moon Boy
    type: MusicRecording
    duration: PT4M28S
    duration ms: 268976
    explicit: false
    by artist: First Day of Spring
    in album: Moon Boy
      type: MusicAlbum
      date published: 2023-01-06
    isrc code: QZTB72252241
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:42:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6f290806b6182d15c588b48125bd598f65b7dc80ea606a9b70adb0f02e65fa43
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB72252241
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T02:01:41Z
    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 0x6f290806b6182d15c588b48125bd598f65b7dc80ea606a9b70adb0f02e65fa43. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZTB72252241.
      date published: 2026-07-21T02:01:41Z
    audio: Moon Boy
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.006
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.566
      additional property: Energy
        type: PropertyValue
        value: 0.791
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.153
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.856
      additional property: Liveness
        type: PropertyValue
        value: 0.339
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.342
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.98
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Operation
  type: MusicAlbum
  date published: 2023-02-03
album: Fly Over Apple Blossom
  type: MusicAlbum
  date published: 2023-02-24
album: You're Blue I'm Blue
  type: MusicAlbum
  date published: 2024-06-14
album: The Rising Tide
  type: MusicAlbum
  date published: 2024-07-12
album: Be My Hospital
  type: MusicAlbum
  date published: 2024-08-09