The Collab Playground
type: MusicGroup
popularity: 3
followers: 83
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa23a9dc66640ff4665efdc79af8dd6a7edd62716fd5c3418516c8d15769abd04
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16102acd-4790-4b5b-a04b-adcb4235110e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16102acd-4790-4b5b-a04b-adcb4235110e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/16102acd-4790-4b5b-a04b-adcb4235110e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa23a9dc66640ff4665efdc79af8dd6a7edd62716fd5c3418516c8d15769abd04","name":"The Collab Playground","registered_at":"2026-06-15T21:07:53Z","symbol":"NIM0832295","token_address":"0x4f4c9b58936e0b6ef7223a64b4c751929590c27d","type":"artist","uuid":"16102acd-4790-4b5b-a04b-adcb4235110e"}
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 0xa23a9dc66640ff4665efdc79af8dd6a7edd62716fd5c3418516c8d15769abd04. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16102acd-4790-4b5b-a04b-adcb4235110e.json and https://artists.proofprofile.net/proofs/artist/16102acd-4790-4b5b-a04b-adcb4235110e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xa23a9dc66640ff4665efdc79af8dd6a7edd62716fd5c3418516c8d15769abd04","name":"The Collab Playground","registered_at":"2026-06-15T21:07:53Z","symbol":"NIM0832295","token_address":"0x4f4c9b58936e0b6ef7223a64b4c751929590c27d","type":"artist","uuid":"16102acd-4790-4b5b-a04b-adcb4235110e"}
album: Buy Something! (From "Earthbound") [Cover]
  type: MusicAlbum
  date published: 2021-12-09
album: Hateno Village (From "Zelda: Breath of the Wild") [Cover]
  type: MusicAlbum
  date published: 2022-01-07
album: Main Theme (From "Disenchantment") [Cover]
  type: MusicAlbum
  date published: 2022-01-21
  track: Main Theme (From "Disenchantment") - Cover
    type: MusicRecording
    duration: PT0M59S
    duration ms: 59478
    explicit: false
    by artist: The Collab Playground
    in album: Main Theme (From "Disenchantment") [Cover]
      type: MusicAlbum
      date published: 2022-01-21
    isrc code: QZPJ32133176
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T09:36:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3bb5eef0d6d286c4f95500bf232186c409039f40791168e12404aa6bc269e558
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958538
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958538
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32133176
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T10:30:13Z
    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 0x3bb5eef0d6d286c4f95500bf232186c409039f40791168e12404aa6bc269e558. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32133176 — a six-check JSON result.
      date published: 2026-07-18T10:30:13Z
    audio: Main Theme (From "Disenchantment") - Cover
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.987
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.772
      additional property: Energy
        type: PropertyValue
        value: 0.356
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
        type: PropertyValue
        value: 0.886
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.763
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.819
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.319
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Zelda's Lullaby (from: "The Legend of Zelda: Ocarina of Time") [Cover]
  type: MusicAlbum
  date published: 2022-01-24
album: Kaepora Gaebora (From “Zelda”) [Cover]
  type: MusicAlbum
  date published: 2022-02-19
album: Dark World (From: "Zelda: A Link to the Past") [Cover]
  type: MusicAlbum
  date published: 2022-03-01
album: Gerudo Valley (from: "Zelda: Ocarina of Time") [Covers]
  type: MusicAlbum
  date published: 2022-04-25
album: Aethervox (From: "Drakengard 3") [Cover]
  type: MusicAlbum
  date published: 2022-07-22
album: Dracula's Castle (from 'Castlevania: Symphony of the Night') [Cover]
  type: MusicAlbum
  date published: 2022-08-04
album: Phantom Forest (From: "Final Fantasy VI") [Cover]
  type: MusicAlbum
  date published: 2022-08-27
album: Succession of Witches (From: "Final Fantasy VIII") [Cover]
  type: MusicAlbum
  date published: 2022-09-24
album: Windfall Island (From: "The Legend of Zelda: The Wind Waker") [Cover]
  type: MusicAlbum
  date published: 2022-10-23