Kelast Marcos
type: MusicGroup
popularity: 11
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7dcceaca640d014068a5ba37353fe643b7091e4b0e774f15144c821205e568f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc4c04fd-d68c-40af-9871-b72ff9b020e5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc4c04fd-d68c-40af-9871-b72ff9b020e5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dc4c04fd-d68c-40af-9871-b72ff9b020e5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd7dcceaca640d014068a5ba37353fe643b7091e4b0e774f15144c821205e568f","name":"Kelast Marcos","registered_at":"2026-06-15T03:35:01Z","symbol":"NIM0669346","token_address":"0x20b7b119e5e7fa1d9f1e8c9abeaecc6a83689b0f","type":"artist","uuid":"dc4c04fd-d68c-40af-9871-b72ff9b020e5"}
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 0xd7dcceaca640d014068a5ba37353fe643b7091e4b0e774f15144c821205e568f. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc4c04fd-d68c-40af-9871-b72ff9b020e5.json and https://artists.proofprofile.net/proofs/artist/dc4c04fd-d68c-40af-9871-b72ff9b020e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0xd7dcceaca640d014068a5ba37353fe643b7091e4b0e774f15144c821205e568f","name":"Kelast Marcos","registered_at":"2026-06-15T03:35:01Z","symbol":"NIM0669346","token_address":"0x20b7b119e5e7fa1d9f1e8c9abeaecc6a83689b0f","type":"artist","uuid":"dc4c04fd-d68c-40af-9871-b72ff9b020e5"}
album: About Me
  type: MusicAlbum
  date published: 2019-08-13
album: About Me
  type: MusicAlbum
  date published: 2019-11-01
  track: Island - Short Version
    type: MusicRecording
    duration: PT2M29S
    duration ms: 149953
    explicit: false
    by artist: Kelast Marcos
    in album: About Me
      type: MusicAlbum
      date published: 2019-11-01
    isrc code: GBLFP1925346
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T19:54:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbd956a035c7466cb94385430ba13549a349ccd03796bf821f4f0dead6b17180a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959061
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959061
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1925346
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T22:56:15Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd956a035c7466cb94385430ba13549a349ccd03796bf821f4f0dead6b17180a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T22:56:15Z), 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/GBLFP1925346.
      date published: 2026-07-21T22:56:15Z
    audio: Island - Short Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.049
      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: 0.689
      additional property: Energy
        type: PropertyValue
        value: 0.51
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.704
      additional property: Liveness
        type: PropertyValue
        value: 0.261
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.254
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.784
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Hospital - Short Version
    type: MusicRecording
    duration: PT2M22S
    duration ms: 142045
    explicit: false
    by artist: Kelast Marcos
    in album: About Me
      type: MusicAlbum
      date published: 2019-11-01
    isrc code: GBLFP1925345
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T07:25:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xff2c70e1c70ee00ec1b4cba9c7356ef51b1933f6d993ec53cc0775461bd58db8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959114
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959114
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1925345
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T10:27:19Z
    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 0xff2c70e1c70ee00ec1b4cba9c7356ef51b1933f6d993ec53cc0775461bd58db8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:27:19Z), 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/GBLFP1925345.
      date published: 2026-07-22T10:27:19Z
    audio: Hospital - Short Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.003
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.79
      additional property: Energy
        type: PropertyValue
        value: 0.925
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.018
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.788
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.034
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: North Country

Loudness (dB)
type: PropertyValue
value: -8.318

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

North Country
type: MusicAlbum
date published: 2024-05-26