César Pop
type: MusicGroup
genre: singer-songwriter
popularity: 13
followers: 1946
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc131576ec8a995e13dd9576597fa085dab087e3a54e4dc08efbdbf4444235c50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cdce35cd-decd-4185-8676-96b3edc2ab06.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cdce35cd-decd-4185-8676-96b3edc2ab06.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cdce35cd-decd-4185-8676-96b3edc2ab06
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc131576ec8a995e13dd9576597fa085dab087e3a54e4dc08efbdbf4444235c50","name":"César Pop","registered_at":"2026-06-15T02:09:21Z","symbol":"NIM0648905","token_address":"0x5bfe718b2fcbfec3fd5a9b04797a56fa37efa081","type":"artist","uuid":"cdce35cd-decd-4185-8676-96b3edc2ab06"}
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 0xc131576ec8a995e13dd9576597fa085dab087e3a54e4dc08efbdbf4444235c50. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdce35cd-decd-4185-8676-96b3edc2ab06.json and https://artists.proofprofile.net/proofs/artist/cdce35cd-decd-4185-8676-96b3edc2ab06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0xc131576ec8a995e13dd9576597fa085dab087e3a54e4dc08efbdbf4444235c50","name":"César Pop","registered_at":"2026-06-15T02:09:21Z","symbol":"NIM0648905","token_address":"0x5bfe718b2fcbfec3fd5a9b04797a56fa37efa081","type":"artist","uuid":"cdce35cd-decd-4185-8676-96b3edc2ab06"}
album: Te Llames Como Te Llames
  type: MusicAlbum
  date published: 2011-11-15
album: Noticias del Norte
  type: MusicAlbum
  date published: 2015-09-25