N O S T a L G I C
type: MusicGroup
popularity: 15
followers: 776
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde33d3b7e1b7812c829b6e7df64854f997a7c19d18b5f6758ade715dee6024fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3e7a1b3-c1d9-47be-bc8a-750387d91d25.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3e7a1b3-c1d9-47be-bc8a-750387d91d25.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e3e7a1b3-c1d9-47be-bc8a-750387d91d25
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xde33d3b7e1b7812c829b6e7df64854f997a7c19d18b5f6758ade715dee6024fd","name":"N O S T a L G I C","registered_at":"2026-06-15T04:28:56Z","symbol":"NIM0682215","token_address":"0xa4769b3b508caf6c291b95d47859c9b8d238fa29","type":"artist","uuid":"e3e7a1b3-c1d9-47be-bc8a-750387d91d25"}
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 0xde33d3b7e1b7812c829b6e7df64854f997a7c19d18b5f6758ade715dee6024fd. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3e7a1b3-c1d9-47be-bc8a-750387d91d25.json and https://artists.proofprofile.net/proofs/artist/e3e7a1b3-c1d9-47be-bc8a-750387d91d25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0xde33d3b7e1b7812c829b6e7df64854f997a7c19d18b5f6758ade715dee6024fd","name":"N O S T a L G I C","registered_at":"2026-06-15T04:28:56Z","symbol":"NIM0682215","token_address":"0xa4769b3b508caf6c291b95d47859c9b8d238fa29","type":"artist","uuid":"e3e7a1b3-c1d9-47be-bc8a-750387d91d25"}
album: Rainy Nights & Neon Lights
  type: MusicAlbum
  date published: 2018-10-04
album: Who Would Miss Me?
  type: MusicAlbum
  date published: 2019-02-02
album: The Art of Getting By
  type: MusicAlbum
  date published: 2019-03-23
album: I Still Think About You
  type: MusicAlbum
  date published: 2019-06-26
album: I Still Think About You
  type: MusicAlbum
  date published: 2019-06-26
album: The Art of Getting By, Vol. 2
  type: MusicAlbum
  date published: 2020-03-14
album: Daydreams
  type: MusicAlbum
  date published: 2020-05-15
album: ILY
  type: MusicAlbum
  date published: 2020-07-11
album: Too Hard to Forget
  type: MusicAlbum
  date published: 2020-09-14
album: Somewhere, Not Here
  type: MusicAlbum
  date published: 2020-11-27
album: simulation
  type: MusicAlbum
  date published: 2021-08-21
album: Back Rooms
  type: MusicAlbum
  date published: 2022-06-11
album: we were.
  type: MusicAlbum
  date published: 2022-08-05
album: fading
  type: MusicAlbum
  date published: 2023-01-29