CellarDoor
type: MusicGroup
genre: deathcore
genre: metalcore
popularity: 3
followers: 516
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb7b6231e4c1104f1bca0b836a1275cd3d427660b0443ef6360adbad7fe2af76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953943
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953943
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2185cf73-9432-47c1-996b-47da53ab516b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2185cf73-9432-47c1-996b-47da53ab516b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2185cf73-9432-47c1-996b-47da53ab516b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:59:32Z
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 0xeb7b6231e4c1104f1bca0b836a1275cd3d427660b0443ef6360adbad7fe2af76. Chain 2 (Bitcoin): anchored in block 953943 (2026-06-16T11:59:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2185cf73-9432-47c1-996b-47da53ab516b.json and https://artists.proofprofile.net/proofs/artist/2185cf73-9432-47c1-996b-47da53ab516b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T11:59:32Z
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  type: MusicAlbum
  date published: 2021-10-13
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  type: MusicAlbum
  date published: 2021-11-19
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  type: MusicAlbum
  date published: 2022-01-20
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2022-06-09
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  type: MusicAlbum
  date published: 2023-08-11
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  type: MusicAlbum
  date published: 2024-03-13
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  type: MusicAlbum
  date published: 2024-06-14
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  type: MusicAlbum
  date published: 2025-07-17