Sandro Martinez
type: MusicGroup
popularity: 5
followers: 92
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd661797875ed1384a1f055c40c75e55a0ab5eeb2e677681bdfbab702bd785557
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f52d6915-9e5c-4352-9c3e-90f6f79f054d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f52d6915-9e5c-4352-9c3e-90f6f79f054d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f52d6915-9e5c-4352-9c3e-90f6f79f054d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd661797875ed1384a1f055c40c75e55a0ab5eeb2e677681bdfbab702bd785557","name":"Sandro Martinez","registered_at":"2026-06-21T14:53:19Z","symbol":"NIM1952918","token_address":"0xb75f2e5bae8d9e8065ff82d6038cea45536a0280","type":"artist","uuid":"f52d6915-9e5c-4352-9c3e-90f6f79f054d"}
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 0xd661797875ed1384a1f055c40c75e55a0ab5eeb2e677681bdfbab702bd785557. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f52d6915-9e5c-4352-9c3e-90f6f79f054d.json and https://artists.proofprofile.net/proofs/artist/f52d6915-9e5c-4352-9c3e-90f6f79f054d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0xd661797875ed1384a1f055c40c75e55a0ab5eeb2e677681bdfbab702bd785557","name":"Sandro Martinez","registered_at":"2026-06-21T14:53:19Z","symbol":"NIM1952918","token_address":"0xb75f2e5bae8d9e8065ff82d6038cea45536a0280","type":"artist","uuid":"f52d6915-9e5c-4352-9c3e-90f6f79f054d"}
album: Snow In June
  type: MusicAlbum
  date published: 2008-02-05
album: The Boom Box EP
  type: MusicAlbum
  date published: 2008-09-01
album: Hitvibes
  type: MusicAlbum
  date published: 2016-11-09
album: Black Out
  type: MusicAlbum
  date published: 2016-11-11
album: Cocoon Party
  type: MusicAlbum
  date published: 2016-11-19
album: Party Mix
  type: MusicAlbum
  date published: 2016-11-20
  track: Faded - Alan Walker Tribute
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212323
    explicit: false
    by artist: Sandro Martinez
    in album: Party Mix
      type: MusicAlbum
      date published: 2016-11-20
    isrc code: BET231633305
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T23:14:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5b75bb7a63ccb3aa8ecbf2d417a7d5422a47c186178199c4b02c79b1c47bdd7d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BET231633305
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:53:26Z
    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 0x5b75bb7a63ccb3aa8ecbf2d417a7d5422a47c186178199c4b02c79b1c47bdd7d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BET231633305.
      date published: 2026-07-17T00:53:26Z
    audio: Faded - Alan Walker Tribute
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.016
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.519
      additional property: Energy
        type: PropertyValue
        value: 0.672
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.015
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.249
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.044
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.751
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Slumber Party Music
  type: MusicAlbum
  date published: 2016-11-24
album: Random Hits
  type: MusicAlbum
  date published: 2016-12-04
album: 2016 Pop Karaoke
  type: MusicAlbum
  date published: 2016-12-09