Martha Velez
type: MusicGroup
popularity: 8
followers: 953
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1c33e75aab4770e8f499e9c80aec227beee89ce8bc2637803f1fc6705cb8e66
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/79b6750c-8318-4c24-b98e-1a3701be6e1e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79b6750c-8318-4c24-b98e-1a3701be6e1e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/79b6750c-8318-4c24-b98e-1a3701be6e1e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc1c33e75aab4770e8f499e9c80aec227beee89ce8bc2637803f1fc6705cb8e66","name":"Martha Velez","registered_at":"2026-06-17T08:01:29Z","symbol":"NIM1331920","token_address":"0x1e10b931c77ea613e03f18fb5b22f53c7098e08a","type":"artist","uuid":"79b6750c-8318-4c24-b98e-1a3701be6e1e"}
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 0xc1c33e75aab4770e8f499e9c80aec227beee89ce8bc2637803f1fc6705cb8e66. 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/79b6750c-8318-4c24-b98e-1a3701be6e1e.json and https://artists.proofprofile.net/proofs/artist/79b6750c-8318-4c24-b98e-1a3701be6e1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc1c33e75aab4770e8f499e9c80aec227beee89ce8bc2637803f1fc6705cb8e66","name":"Martha Velez","registered_at":"2026-06-17T08:01:29Z","symbol":"NIM1331920","token_address":"0x1e10b931c77ea613e03f18fb5b22f53c7098e08a","type":"artist","uuid":"79b6750c-8318-4c24-b98e-1a3701be6e1e"}
album: Fiends & Angels
  type: MusicAlbum
  date published: 1969
  track: Feel so Bad
    type: MusicRecording
    duration: PT5M11S
    duration ms: 311680
    explicit: false
    by artist: Martha Velez
    in album: Fiends & Angels
      type: MusicAlbum
      date published: 1969
    isrc code: USWB10800564
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T09:46:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xac10ae7dfa4296d0ac756955318f30ba8a987bc62e19741cb3224bdb377bdebc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958397
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958397
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB10800564
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T10:29:45Z
    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 0xac10ae7dfa4296d0ac756955318f30ba8a987bc62e19741cb3224bdb377bdebc. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USWB10800564.
      date published: 2026-07-17T10:29:45Z
    audio: Feel so Bad
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.228
      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: 0.219
      additional property: Energy
        type: PropertyValue
        value: 0.778
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0.378
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.62
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.678
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.79
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Matinee Weepers
  type: MusicAlbum
  date published: 1974
album: Escape From Babylon
  type: MusicAlbum
  date published: 1976
album: American Heartbeat
  type: MusicAlbum
  date published: 1977