Lost Hollow
type: MusicGroup
popularity: 4
followers: 443
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3c16556485b7c52b58a6ca30ffbfd49341c5993365a97ac67687f97525fa738
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d849426f-0121-4b28-b8d7-520e00516900.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d849426f-0121-4b28-b8d7-520e00516900.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d849426f-0121-4b28-b8d7-520e00516900
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf3c16556485b7c52b58a6ca30ffbfd49341c5993365a97ac67687f97525fa738","name":"Lost Hollow","registered_at":"2026-06-21T03:56:01Z","symbol":"NIM1811853","token_address":"0x2fdcd3c05c0355e8c0677d409a7b324b4586ead6","type":"artist","uuid":"d849426f-0121-4b28-b8d7-520e00516900"}
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 0xf3c16556485b7c52b58a6ca30ffbfd49341c5993365a97ac67687f97525fa738. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d849426f-0121-4b28-b8d7-520e00516900.json and https://artists.proofprofile.net/proofs/artist/d849426f-0121-4b28-b8d7-520e00516900.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf3c16556485b7c52b58a6ca30ffbfd49341c5993365a97ac67687f97525fa738","name":"Lost Hollow","registered_at":"2026-06-21T03:56:01Z","symbol":"NIM1811853","token_address":"0x2fdcd3c05c0355e8c0677d409a7b324b4586ead6","type":"artist","uuid":"d849426f-0121-4b28-b8d7-520e00516900"}
album: Lost Hollow
  type: MusicAlbum
  date published: 2015-10-30
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  type: MusicAlbum
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