Half Acre Day
type: MusicGroup
popularity: 11
followers: 174
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85fdfd21b95a35eb4e37f310e3b6d928c043b51ca13314808d6fffd2c7f422b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2a5ff65-d2b6-4f0d-9558-a3666d348f03.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2a5ff65-d2b6-4f0d-9558-a3666d348f03.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2a5ff65-d2b6-4f0d-9558-a3666d348f03
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x85fdfd21b95a35eb4e37f310e3b6d928c043b51ca13314808d6fffd2c7f422b2","name":"Half Acre Day","registered_at":"2026-06-14T23:18:18Z","symbol":"NIM0608024","token_address":"0xe117310235fc95926032509a966edbd1d6be0a78","type":"artist","uuid":"b2a5ff65-d2b6-4f0d-9558-a3666d348f03"}
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 0x85fdfd21b95a35eb4e37f310e3b6d928c043b51ca13314808d6fffd2c7f422b2. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2a5ff65-d2b6-4f0d-9558-a3666d348f03.json and https://artists.proofprofile.net/proofs/artist/b2a5ff65-d2b6-4f0d-9558-a3666d348f03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0x85fdfd21b95a35eb4e37f310e3b6d928c043b51ca13314808d6fffd2c7f422b2","name":"Half Acre Day","registered_at":"2026-06-14T23:18:18Z","symbol":"NIM0608024","token_address":"0xe117310235fc95926032509a966edbd1d6be0a78","type":"artist","uuid":"b2a5ff65-d2b6-4f0d-9558-a3666d348f03"}
album: Here Is Something Fun for You to Do. Color This Picture.
  type: MusicAlbum
  date published: 2000-02-08
album: Primo de la Rocket Suit
  type: MusicAlbum
  date published: 2002-11-19
album: Half Acre Day
  type: MusicAlbum
  date published: 2005-11-05
album: 14 Trips Around the Sun
  type: MusicAlbum
  date published: 2007-11-13
album: The Lunar Singles
  type: MusicAlbum
  date published: 2010-02-14
  track: Skeletons
    type: MusicRecording
    duration: PT4M40S
    duration ms: 280425
    explicit: false
    by artist: Half Acre Day
    in album: The Lunar Singles
      type: MusicAlbum
      date published: 2010-02-14
    isrc code: USCGH1745861
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:27:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1a1b4494f2fcf45926b8ee6f2534a102eb5cd1886d5e257a0b0e874e916cb3fb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959123
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959123
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1745861
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T11:35:32Z
    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 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 0x1a1b4494f2fcf45926b8ee6f2534a102eb5cd1886d5e257a0b0e874e916cb3fb. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USCGH1745861.
      date published: 2026-07-22T11:35:32Z
    audio: Skeletons
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.029
      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: 0.658
      additional property: Energy
        type: PropertyValue
        value: 0.398
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.046
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.248
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.607
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.427
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major