Lookback
type: MusicGroup
popularity: 2
followers: 294
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d4d05126e5cf1e598524cd90f1069d78bfe0eb7d8e70617711dd8cb625cb051
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953984
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953984
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e325e70-8b59-44b6-a534-1f248de5f2d7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e325e70-8b59-44b6-a534-1f248de5f2d7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2e325e70-8b59-44b6-a534-1f248de5f2d7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:08:34Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4d05126e5cf1e598524cd90f1069d78bfe0eb7d8e70617711dd8cb625cb051. 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/2e325e70-8b59-44b6-a534-1f248de5f2d7.json and https://artists.proofprofile.net/proofs/artist/2e325e70-8b59-44b6-a534-1f248de5f2d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
album: Suonasse
  type: MusicAlbum
  date published: 2011-01-06
album: Musika
  type: MusicAlbum
  date published: 2011-03-24
album: Sudo
  type: MusicAlbum
  date published: 2011-12-19
album: Sudo
  type: MusicAlbum
  date published: 2012-02-10
album: Sudo (Remix)
  type: MusicAlbum
  date published: 2012-03-02
album: Sudo
  type: MusicAlbum
  date published: 2012-03-23
album: What Da F**k
  type: MusicAlbum
  date published: 2014-02-17
album: Dukkha (Disco Citofono)
  type: MusicAlbum
  date published: 2015-02-09
album: Dukkha (Disco Citofono) [Lookback Vs. Precious X Project]
  type: MusicAlbum
  date published: 2015-02-09
album: Queen of the Dancefloor
  type: MusicAlbum
  date published: 2017-01-27
album: Musika
  type: MusicAlbum
  date published: 2018-06-22