Sandro Keyz
type: MusicGroup
popularity: 6
followers: 171
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62b71efee486ec1c5bf64db4ace68c4160167763df998ea9261f0ef40300a136
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/73ffcfe2-289d-4252-9c63-ece6bf5964bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73ffcfe2-289d-4252-9c63-ece6bf5964bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73ffcfe2-289d-4252-9c63-ece6bf5964bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x62b71efee486ec1c5bf64db4ace68c4160167763df998ea9261f0ef40300a136","name":"Sandro Keyz","registered_at":"2026-06-17T05:57:11Z","symbol":"NIM1302305","token_address":"0x7d78866d2786242190f9d67136ba2aba1dccbd00","type":"artist","uuid":"73ffcfe2-289d-4252-9c63-ece6bf5964bd"}
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 0x62b71efee486ec1c5bf64db4ace68c4160167763df998ea9261f0ef40300a136. 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/73ffcfe2-289d-4252-9c63-ece6bf5964bd.json and https://artists.proofprofile.net/proofs/artist/73ffcfe2-289d-4252-9c63-ece6bf5964bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x62b71efee486ec1c5bf64db4ace68c4160167763df998ea9261f0ef40300a136","name":"Sandro Keyz","registered_at":"2026-06-17T05:57:11Z","symbol":"NIM1302305","token_address":"0x7d78866d2786242190f9d67136ba2aba1dccbd00","type":"artist","uuid":"73ffcfe2-289d-4252-9c63-ece6bf5964bd"}
album: Your Rhythm
  type: MusicAlbum
  date published: 2021-04-20
album: Tragedy
  type: MusicAlbum
  date published: 2021-09-03
album: Need U
  type: MusicAlbum
  date published: 2021-10-22
album: All I Ever Wanted
  type: MusicAlbum
  date published: 2021-11-19
album: Favorite Symphony
  type: MusicAlbum
  date published: 2022-06-17
album: Somethin about you
  type: MusicAlbum
  date published: 2022-09-23
album: Tell Me
  type: MusicAlbum
  date published: 2023-01-27
album: Addiction
  type: MusicAlbum
  date published: 2023-04-14
album: Heartless
  type: MusicAlbum
  date published: 2024-03-01
album: SoCal
  type: MusicAlbum
  date published: 2025-09-26