retro stereo
type: MusicGroup
popularity: 19
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdd98152f19d1e56d0ca53ae223eab0d4f08ae782d18b2332d359420272c8fce8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb86cf14-9346-4205-94aa-03c3f9c2390a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb86cf14-9346-4205-94aa-03c3f9c2390a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb86cf14-9346-4205-94aa-03c3f9c2390a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdd98152f19d1e56d0ca53ae223eab0d4f08ae782d18b2332d359420272c8fce8","name":"retro stereo","registered_at":"2026-06-15T01:54:10Z","symbol":"NIM0645278","token_address":"0xf8a12c2131e77b24320178342214711fb4e6ae86","type":"artist","uuid":"cb86cf14-9346-4205-94aa-03c3f9c2390a"}
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 0xdd98152f19d1e56d0ca53ae223eab0d4f08ae782d18b2332d359420272c8fce8. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb86cf14-9346-4205-94aa-03c3f9c2390a.json and https://artists.proofprofile.net/proofs/artist/cb86cf14-9346-4205-94aa-03c3f9c2390a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0xdd98152f19d1e56d0ca53ae223eab0d4f08ae782d18b2332d359420272c8fce8","name":"retro stereo","registered_at":"2026-06-15T01:54:10Z","symbol":"NIM0645278","token_address":"0xf8a12c2131e77b24320178342214711fb4e6ae86","type":"artist","uuid":"cb86cf14-9346-4205-94aa-03c3f9c2390a"}
album: Demi Cinta
  type: MusicAlbum
  date published: 2023-01-25
album: Udahan
  type: MusicAlbum
  date published: 2023-05-22
album: Seharusnya
  type: MusicAlbum
  date published: 2023-10-18
album: Hark! The Herald Angel Sing
  type: MusicAlbum
  date published: 2023-12-24
  track: Hark! The Herald Angel Sing
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250493
    explicit: false
    by artist: retro stereo
    in album: Hark! The Herald Angel Sing
      type: MusicAlbum
      date published: 2023-12-24
    isrc code: QZZ972362612
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T15:52:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x91c0161ffd3f1193d48b6fc6eb5072e0ee97e5c4bd29db721bfb8895ad63cd6b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ972362612
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0x91c0161ffd3f1193d48b6fc6eb5072e0ee97e5c4bd29db721bfb8895ad63cd6b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZZ972362612 — a six-check JSON result.
      date published: 2026-07-16T16:14:30Z
    audio: Hark! The Herald Angel Sing
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.523
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.351
      additional property: Energy
        type: PropertyValue
        value: 0.224
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.732
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.338
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.885
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major