These Days & Those Days
type: MusicGroup
genre: deathcore
genre: hardcore
popularity: 4
followers: 481
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2364f93ce8a8352c9b261330e38b616713109ad02174468d1dea6046d371bb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1df232a7-2dbe-4ba8-8c84-1058d2e55c59.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1df232a7-2dbe-4ba8-8c84-1058d2e55c59.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1df232a7-2dbe-4ba8-8c84-1058d2e55c59
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf2364f93ce8a8352c9b261330e38b616713109ad02174468d1dea6046d371bb7","name":"These Days & Those Days","registered_at":"2026-06-15T23:52:25Z","symbol":"NIM0871556","token_address":"0x5c9fb17d98912741f72e7a4cdc34d064056c0878","type":"artist","uuid":"1df232a7-2dbe-4ba8-8c84-1058d2e55c59"}
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 0xf2364f93ce8a8352c9b261330e38b616713109ad02174468d1dea6046d371bb7. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1df232a7-2dbe-4ba8-8c84-1058d2e55c59.json and https://artists.proofprofile.net/proofs/artist/1df232a7-2dbe-4ba8-8c84-1058d2e55c59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xf2364f93ce8a8352c9b261330e38b616713109ad02174468d1dea6046d371bb7","name":"These Days & Those Days","registered_at":"2026-06-15T23:52:25Z","symbol":"NIM0871556","token_address":"0x5c9fb17d98912741f72e7a4cdc34d064056c0878","type":"artist","uuid":"1df232a7-2dbe-4ba8-8c84-1058d2e55c59"}
album: These Days / Those Days
  type: MusicAlbum
  date published: 2020-10-20
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