Yesterday Is History
type: MusicGroup
popularity: 2
followers: 159
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x577c14d57ab9dcfa587acb155dcb9143edf73eca9abc5e0a3ef10667b5aa8273
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/afd20b6f-3dc2-4081-b371-237ccb2a404e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/afd20b6f-3dc2-4081-b371-237ccb2a404e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/afd20b6f-3dc2-4081-b371-237ccb2a404e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x577c14d57ab9dcfa587acb155dcb9143edf73eca9abc5e0a3ef10667b5aa8273","name":"Yesterday Is History","registered_at":"2026-06-20T11:20:39Z","symbol":"NIM1601088","token_address":"0x9efaaa91fcaf058de226ddea916a5d3d130d2b3b","type":"artist","uuid":"afd20b6f-3dc2-4081-b371-237ccb2a404e"}
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 0x577c14d57ab9dcfa587acb155dcb9143edf73eca9abc5e0a3ef10667b5aa8273. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afd20b6f-3dc2-4081-b371-237ccb2a404e.json and https://artists.proofprofile.net/proofs/artist/afd20b6f-3dc2-4081-b371-237ccb2a404e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x577c14d57ab9dcfa587acb155dcb9143edf73eca9abc5e0a3ef10667b5aa8273","name":"Yesterday Is History","registered_at":"2026-06-20T11:20:39Z","symbol":"NIM1601088","token_address":"0x9efaaa91fcaf058de226ddea916a5d3d130d2b3b","type":"artist","uuid":"afd20b6f-3dc2-4081-b371-237ccb2a404e"}
album: Frames
  type: MusicAlbum
  date published: 2017-09-19
album: Frames
  type: MusicAlbum
  date published: 2018-12-20
album: Circles
  type: MusicAlbum
  date published: 2019-04-16
album: Liminal
  type: MusicAlbum
  date published: 2025-03-10