Sara C
type: MusicGroup
popularity: 3
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf00f046ce69533fa4e64b8420e62344856eb7ef06ed88e5b1809083733bbc72
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87d4f5ec-5a5d-482a-a723-f92e020ea1ee.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87d4f5ec-5a5d-482a-a723-f92e020ea1ee.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/87d4f5ec-5a5d-482a-a723-f92e020ea1ee
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcf00f046ce69533fa4e64b8420e62344856eb7ef06ed88e5b1809083733bbc72","name":"Sara C","registered_at":"2026-06-17T12:59:16Z","symbol":"NIM1402847","token_address":"0x82c18a1dbbaf7679de59f062f429e2e9dc8e8d5d","type":"artist","uuid":"87d4f5ec-5a5d-482a-a723-f92e020ea1ee"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf00f046ce69533fa4e64b8420e62344856eb7ef06ed88e5b1809083733bbc72. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87d4f5ec-5a5d-482a-a723-f92e020ea1ee.json and https://artists.proofprofile.net/proofs/artist/87d4f5ec-5a5d-482a-a723-f92e020ea1ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xcf00f046ce69533fa4e64b8420e62344856eb7ef06ed88e5b1809083733bbc72","name":"Sara C","registered_at":"2026-06-17T12:59:16Z","symbol":"NIM1402847","token_address":"0x82c18a1dbbaf7679de59f062f429e2e9dc8e8d5d","type":"artist","uuid":"87d4f5ec-5a5d-482a-a723-f92e020ea1ee"}
album: Switch
  type: MusicAlbum
  date published: 2025-02-15
album: Sorry for myself
  type: MusicAlbum
  date published: 2025-09-01
  track: Sorry for myself
    type: MusicRecording
    duration: PT3M54S
    duration ms: 234615
    explicit: false
    by artist: Sara C
    in album: Sorry for myself
      type: MusicAlbum
      date published: 2025-09-01
    isrc code: QZZ7L2528683
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T01:59:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf914770af0f8de11cb20a88d14e0fe239c441bf0d9da13649ca9b8cdfce46b50
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958808
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958808
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7L2528683
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T05:01:38Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf914770af0f8de11cb20a88d14e0fe239c441bf0d9da13649ca9b8cdfce46b50. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:01:38Z), 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/QZZ7L2528683.
      date published: 2026-07-20T05:01:38Z
    audio: Sorry for myself
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.969
      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: 0.603
      additional property: Energy
        type: PropertyValue
        value: 0.256
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.868
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.277
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.377
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major