Flac
type: MusicGroup
description: FLAC (; Free Lossless Audio Codec) is an audio coding format for lossless compression of digital audio, developed by the Xiph.Org Foundation, and is also the name of the free software project producin
popularity: 3
followers: 234
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa561bf17c6d5c4b7c057a0cdaeaf8db75e11e0371ce03ef4b7431d449bb17d65
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/7777a9b3-429f-4b55-8c2e-4935ffc1600a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7777a9b3-429f-4b55-8c2e-4935ffc1600a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7777a9b3-429f-4b55-8c2e-4935ffc1600a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa561bf17c6d5c4b7c057a0cdaeaf8db75e11e0371ce03ef4b7431d449bb17d65. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7777a9b3-429f-4b55-8c2e-4935ffc1600a.json and https://artists.proofprofile.net/proofs/artist/7777a9b3-429f-4b55-8c2e-4935ffc1600a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
album: Killer
  type: MusicAlbum
  date published: 2015-05-31
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  type: MusicAlbum
  date published: 2017-05-26
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  type: MusicAlbum
  date published: 2018-09-07
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  type: MusicAlbum
  date published: 2018-11-02
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  type: MusicAlbum
  date published: 2020-04-17
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  type: MusicAlbum
  date published: 2020-05-17
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  type: MusicAlbum
  date published: 2020-07-03
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  type: MusicAlbum
  date published: 2021-01-29
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  type: MusicAlbum
  date published: 2021-06-04
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  type: MusicAlbum
  date published: 2023-04-21
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  type: MusicAlbum
  date published: 2023-12-01