Sierra Stone
type: MusicGroup
genre: alternative pop
popularity: 3
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x106d3a9fbf1e14a5623936000e0c3d4e504b54ec1a613dd67d6e1a7f8ff82cdb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ff7b537-fffb-4393-abf6-c0ef8ad7a966.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ff7b537-fffb-4393-abf6-c0ef8ad7a966.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3ff7b537-fffb-4393-abf6-c0ef8ad7a966
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x106d3a9fbf1e14a5623936000e0c3d4e504b54ec1a613dd67d6e1a7f8ff82cdb","name":"Sierra Stone","registered_at":"2026-06-16T11:50:45Z","symbol":"NIM1043075","token_address":"0x5746ea8961746bdcdf39b836f65c74a4414d0fcb","type":"artist","uuid":"3ff7b537-fffb-4393-abf6-c0ef8ad7a966"}
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 0x106d3a9fbf1e14a5623936000e0c3d4e504b54ec1a613dd67d6e1a7f8ff82cdb. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ff7b537-fffb-4393-abf6-c0ef8ad7a966.json and https://artists.proofprofile.net/proofs/artist/3ff7b537-fffb-4393-abf6-c0ef8ad7a966.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0x106d3a9fbf1e14a5623936000e0c3d4e504b54ec1a613dd67d6e1a7f8ff82cdb","name":"Sierra Stone","registered_at":"2026-06-16T11:50:45Z","symbol":"NIM1043075","token_address":"0x5746ea8961746bdcdf39b836f65c74a4414d0fcb","type":"artist","uuid":"3ff7b537-fffb-4393-abf6-c0ef8ad7a966"}
album: Toxic
  type: MusicAlbum
  date published: 2024-09-13
album: A Man Like You
  type: MusicAlbum
  date published: 2025-02-21
  track: A Man Like You
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172801
    explicit: true
    by artist: Sierra Stone
    in album: A Man Like You
      type: MusicAlbum
      date published: 2025-02-21
    genre: alternative pop
    isrc code: QZES62517438
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T06:21:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa97f082bbaea36354b361b1d281d8c1d7c5c6dcde055a206edf58a90c06238e2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62517438
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xa97f082bbaea36354b361b1d281d8c1d7c5c6dcde055a206edf58a90c06238e2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES62517438 — a six-check JSON result.
      date published: 2026-07-04T10:04:33Z
    audio: A Man Like You
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 151.937
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.368
      additional property: Energy
        type: PropertyValue
        value: 0.477
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.584
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.138
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.214
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.664
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Damage Control
  type: MusicAlbum
  date published: 2025-05-30