Samuel Martinez
type: MusicGroup
description: Samuel Martines (born 1959) is a Cuban-born American ethnologist, ethnographer, cultural anthropologist, and professor at the University of Connecticut. He has published extensively on the struggle fo
popularity: 2
followers: 24
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbededa8328cc2b93fbb512071bc0a5d6047f2800f90988fe19b1cc927ccd49a8. 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/5c04d755-7df3-4f55-9681-4c0ab87cadf7.json and https://artists.proofprofile.net/proofs/artist/5c04d755-7df3-4f55-9681-4c0ab87cadf7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Homecoming
  type: MusicAlbum
  date published: 2024-09-17
  track: Homecoming
    type: MusicRecording
    duration: PT1M43S
    duration ms: 103003
    explicit: false
    by artist: Samuel Martinez
    in album: Homecoming
      type: MusicAlbum
      date published: 2024-09-17
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    additional property: OTSTimestamp
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    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 0x7e578c220c70f81197beb5187cf1cfc33fbcebc10bdb15f371a0ce2c5fe502c2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAIS2497962.
      date published: 2026-07-06T06:56:49Z
    audio: Homecoming
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Mode (Major/Minor)
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      additional property: Danceability
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      additional property: Speechiness
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
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album: Here
  type: MusicAlbum
  date published: 2025-04-16
album: Bw Freestyle
  type: MusicAlbum
  date published: 2025-05-02
album: Questions for God (Q.F.G.)
  type: MusicAlbum
  date published: 2025-05-09
album: Freezin
  type: MusicAlbum
  date published: 2025-06-20