Atanas Srebrev
type: MusicGroup
genre: children's music
popularity: 7
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3627f3a2596407410c5f3770b2a845a87ca7d28f5aa413a2964c663c4fb655c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e936bbe9-c555-404c-93a1-e8a3c4512d7b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e936bbe9-c555-404c-93a1-e8a3c4512d7b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e936bbe9-c555-404c-93a1-e8a3c4512d7b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf3627f3a2596407410c5f3770b2a845a87ca7d28f5aa413a2964c663c4fb655c","name":"Atanas Srebrev","registered_at":"2026-06-21T09:45:21Z","symbol":"NIM1891763","token_address":"0x810cdf07cfa22919be1e716c0289ca9cfb2121d9","type":"artist","uuid":"e936bbe9-c555-404c-93a1-e8a3c4512d7b"}
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 0xf3627f3a2596407410c5f3770b2a845a87ca7d28f5aa413a2964c663c4fb655c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e936bbe9-c555-404c-93a1-e8a3c4512d7b.json and https://artists.proofprofile.net/proofs/artist/e936bbe9-c555-404c-93a1-e8a3c4512d7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xf3627f3a2596407410c5f3770b2a845a87ca7d28f5aa413a2964c663c4fb655c","name":"Atanas Srebrev","registered_at":"2026-06-21T09:45:21Z","symbol":"NIM1891763","token_address":"0x810cdf07cfa22919be1e716c0289ca9cfb2121d9","type":"artist","uuid":"e936bbe9-c555-404c-93a1-e8a3c4512d7b"}