Slavin Slavchev
type: MusicGroup
genre: industrial metal
description: Slavin Slavchev (, born 7 March 1991) is a Bulgarian singer and songwriter currently a lead vocal and bass guitarist in Julian's Laughter. He is the winner of the 2014 season of Bulgarian X Factor. C
popularity: 2
followers: 334
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35f17f5a3c24c5f43f2911d268a6eab91f21e669fcde11da7c82a738aff541b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3cc91fca-d927-41ce-b5e3-7e6dbbb04757.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3cc91fca-d927-41ce-b5e3-7e6dbbb04757.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3cc91fca-d927-41ce-b5e3-7e6dbbb04757
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x35f17f5a3c24c5f43f2911d268a6eab91f21e669fcde11da7c82a738aff541b6","name":"Slavin Slavchev","registered_at":"2026-06-16T10:43:48Z","symbol":"NIM1027108","token_address":"0x93aa051a9c96d71cecfa1bc9e29551a441785195","type":"artist","uuid":"3cc91fca-d927-41ce-b5e3-7e6dbbb04757"}
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 0x35f17f5a3c24c5f43f2911d268a6eab91f21e669fcde11da7c82a738aff541b6. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cc91fca-d927-41ce-b5e3-7e6dbbb04757.json and https://artists.proofprofile.net/proofs/artist/3cc91fca-d927-41ce-b5e3-7e6dbbb04757.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0x35f17f5a3c24c5f43f2911d268a6eab91f21e669fcde11da7c82a738aff541b6","name":"Slavin Slavchev","registered_at":"2026-06-16T10:43:48Z","symbol":"NIM1027108","token_address":"0x93aa051a9c96d71cecfa1bc9e29551a441785195","type":"artist","uuid":"3cc91fca-d927-41ce-b5e3-7e6dbbb04757"}
album: Ела
  type: MusicAlbum
  date published: 2015-03-13
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  type: MusicAlbum
  date published: 2015-08-28
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  type: MusicAlbum
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  type: MusicAlbum
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album: За Теб
  type: MusicAlbum
  date published: 2024-03-13