Grave Speaker
type: MusicGroup
genre: doom metal
genre: sludge metal
genre: space rock
genre: stoner rock
popularity: 2
followers: 415
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc05a5ef1131662fa65c82e3f8cef53d32cd73d868f0209f5756a8f24e9168ed1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/59dc3d7e-9b91-46a0-b34b-01a0b13e7cdc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/59dc3d7e-9b91-46a0-b34b-01a0b13e7cdc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/59dc3d7e-9b91-46a0-b34b-01a0b13e7cdc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc05a5ef1131662fa65c82e3f8cef53d32cd73d868f0209f5756a8f24e9168ed1","name":"Grave Speaker","registered_at":"2026-06-16T20:54:16Z","symbol":"NIM1172757","token_address":"0xa22d1dbd3ebd4cc80eb7bf850659e9e9c88021a2","type":"artist","uuid":"59dc3d7e-9b91-46a0-b34b-01a0b13e7cdc"}
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 0xc05a5ef1131662fa65c82e3f8cef53d32cd73d868f0209f5756a8f24e9168ed1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59dc3d7e-9b91-46a0-b34b-01a0b13e7cdc.json and https://artists.proofprofile.net/proofs/artist/59dc3d7e-9b91-46a0-b34b-01a0b13e7cdc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc05a5ef1131662fa65c82e3f8cef53d32cd73d868f0209f5756a8f24e9168ed1","name":"Grave Speaker","registered_at":"2026-06-16T20:54:16Z","symbol":"NIM1172757","token_address":"0xa22d1dbd3ebd4cc80eb7bf850659e9e9c88021a2","type":"artist","uuid":"59dc3d7e-9b91-46a0-b34b-01a0b13e7cdc"}
album: Grave Speaker
  type: MusicAlbum
  date published: 2023-10-13
album: The Alchemist
  type: MusicAlbum
  date published: 2024-10-31
album: Bones and Steel
  type: MusicAlbum
  date published: 2025-03-28
album: Rays of the Emerald Sun
  type: MusicAlbum
  date published: 2025-04-18
album: Rays of the Emerald Sun
  type: MusicAlbum
  date published: 2025-05-16
  track: Chosen One
    type: MusicRecording
    duration: PT5M56S
    duration ms: 356450
    explicit: false
    by artist: Grave Speaker
    in album: Rays of the Emerald Sun
      type: MusicAlbum
      date published: 2025-05-16
    genre: doom metal
    genre: sludge metal
    genre: space rock
    genre: stoner rock
    isrc code: USDY42523821
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:37:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x90c6ef41940aeaab94571f25373f852f62eaa5b7d022a65761cd2683a6ced9d6
    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/USDY42523821
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T02:49:15Z
    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 0x90c6ef41940aeaab94571f25373f852f62eaa5b7d022a65761cd2683a6ced9d6. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USDY42523821.
      date published: 2026-07-20T02:49:15Z
    audio: Chosen One
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.012
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.403
      additional property: Energy
        type: PropertyValue
        value: 0.609
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.082
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.803
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.19
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.145
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major