יאיר כהן
type: MusicGroup
popularity: 3
followers: 446
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d41c0ba2dc9103a365336a6f06e66d455e451ab1f99f7dd3bf7fe51e5672124
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954019
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954019
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37067ef0-6c11-4974-a199-9939c202b98e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37067ef0-6c11-4974-a199-9939c202b98e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37067ef0-6c11-4974-a199-9939c202b98e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:44:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1d41c0ba2dc9103a365336a6f06e66d455e451ab1f99f7dd3bf7fe51e5672124","name":"יאיר כהן","registered_at":"2026-06-16T08:41:41Z","symbol":"NIM0997969","token_address":"0xe8e45f18872d1610ea1360a0c2cf75b29a74a614","type":"artist","uuid":"37067ef0-6c11-4974-a199-9939c202b98e"}
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 0x1d41c0ba2dc9103a365336a6f06e66d455e451ab1f99f7dd3bf7fe51e5672124. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37067ef0-6c11-4974-a199-9939c202b98e.json and https://artists.proofprofile.net/proofs/artist/37067ef0-6c11-4974-a199-9939c202b98e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:44:13Z
  text: {"copyright_id":"0x1d41c0ba2dc9103a365336a6f06e66d455e451ab1f99f7dd3bf7fe51e5672124","name":"יאיר כהן","registered_at":"2026-06-16T08:41:41Z","symbol":"NIM0997969","token_address":"0xe8e45f18872d1610ea1360a0c2cf75b29a74a614","type":"artist","uuid":"37067ef0-6c11-4974-a199-9939c202b98e"}
album: עורי יחידה
  type: MusicAlbum
  date published: 2023-04-18
album: ממך גואלי
  type: MusicAlbum
  date published: 2024-01-14
album: אמת קנה
  type: MusicAlbum
  date published: 2024-01-16
album: דובאי
  type: MusicAlbum
  date published: 2025-08-11