Boyana
type: MusicGroup
description: right|thumb|A street in Boyana right|thumb|The Boyana Church right|thumb|Boyana residence and National Historical Museum (Bulgaria)- view from Vitosha, Kopitoto Boyana ( ) is a neighbourhood of the Bu
popularity: 7
followers: 74
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9cf0f91a523fa89e3dfbece83456846e6375813b9a04a512e98efdf4b5bc96c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/50fe0162-6b3e-46a9-9752-df5b28f5b39e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/50fe0162-6b3e-46a9-9752-df5b28f5b39e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/50fe0162-6b3e-46a9-9752-df5b28f5b39e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
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 0x9cf0f91a523fa89e3dfbece83456846e6375813b9a04a512e98efdf4b5bc96c7. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50fe0162-6b3e-46a9-9752-df5b28f5b39e.json and https://artists.proofprofile.net/proofs/artist/50fe0162-6b3e-46a9-9752-df5b28f5b39e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: Eyes Full of Lights
  type: MusicAlbum
  date published: 2021-03-30
album: Синя вечност
  type: MusicAlbum
  date published: 2021-08-16
album: Синя вечност
  type: MusicAlbum
  date published: 2021-08-16
album: Нощен миг
  type: MusicAlbum
  date published: 2023-02-13
album: Heart on Fire
  type: MusicAlbum
  date published: 2023-08-20