Francesc Pi De La Serra
type: MusicGroup
genre: singer-songwriter
popularity: 2
followers: 678
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe48a41da274aad1fe052701653a7cc629b03ead9d6c747872efcc2126716e313
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3fc3de5-250b-4d19-af70-378cb466e1d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3fc3de5-250b-4d19-af70-378cb466e1d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e3fc3de5-250b-4d19-af70-378cb466e1d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe48a41da274aad1fe052701653a7cc629b03ead9d6c747872efcc2126716e313","name":"Francesc Pi De La Serra","registered_at":"2026-06-21T07:54:21Z","symbol":"NIM1867671","token_address":"0xf63c55ee61a2fcd03776ca3e0979a5f6089476cd","type":"artist","uuid":"e3fc3de5-250b-4d19-af70-378cb466e1d1"}
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 0xe48a41da274aad1fe052701653a7cc629b03ead9d6c747872efcc2126716e313. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3fc3de5-250b-4d19-af70-378cb466e1d1.json and https://artists.proofprofile.net/proofs/artist/e3fc3de5-250b-4d19-af70-378cb466e1d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xe48a41da274aad1fe052701653a7cc629b03ead9d6c747872efcc2126716e313","name":"Francesc Pi De La Serra","registered_at":"2026-06-21T07:54:21Z","symbol":"NIM1867671","token_address":"0xf63c55ee61a2fcd03776ca3e0979a5f6089476cd","type":"artist","uuid":"e3fc3de5-250b-4d19-af70-378cb466e1d1"}
album: Francesc Pi de la Serra canta les seves cançons - Els setze jutges
  type: MusicAlbum
  date published: 1963-01-01
album: Francesc Pi de la Serra (Vol. 2)
  type: MusicAlbum
  date published: 1964-09-04
album: Francesc Pi de la Serra I Les Seves Cançons (Vol. 3)
  type: MusicAlbum
  date published: 1966-06-19
album: Francesc Pi de la Serra
  type: MusicAlbum
  date published: 1968-09-24
album: Pi de la Serra a Madrid
  type: MusicAlbum
  date published: 1977
album: Francesc Pi de la Serra
  type: MusicAlbum
  date published: 2007-01-01