Ursula Martinez
type: MusicGroup
description: thumb|Ursula Martinez on stage in 2005. Ursula Martinez (born 1966) is a British theatre maker, performer and director. She grew up in South London, the daughter of an English father and Spanish mothe
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78993047d45802d9332d514db4c18e12ab458fd5a9a23715431743bc6820c90b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36f931b5-73f8-478d-8913-d5541653c80e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36f931b5-73f8-478d-8913-d5541653c80e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/36f931b5-73f8-478d-8913-d5541653c80e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x78993047d45802d9332d514db4c18e12ab458fd5a9a23715431743bc6820c90b","name":"Ursula Martinez","registered_at":"2026-06-16T08:40:41Z","symbol":"NIM0997731","token_address":"0x294be8a87dbee31c41525b4274d344a8bdd8bf6e","type":"artist","uuid":"36f931b5-73f8-478d-8913-d5541653c80e"}
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 0x78993047d45802d9332d514db4c18e12ab458fd5a9a23715431743bc6820c90b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36f931b5-73f8-478d-8913-d5541653c80e.json and https://artists.proofprofile.net/proofs/artist/36f931b5-73f8-478d-8913-d5541653c80e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x78993047d45802d9332d514db4c18e12ab458fd5a9a23715431743bc6820c90b","name":"Ursula Martinez","registered_at":"2026-06-16T08:40:41Z","symbol":"NIM0997731","token_address":"0x294be8a87dbee31c41525b4274d344a8bdd8bf6e","type":"artist","uuid":"36f931b5-73f8-478d-8913-d5541653c80e"}
album: Exclusive Memory
  type: MusicAlbum
  date published: 2025-01-05
album: Past Grudges
  type: MusicAlbum
  date published: 2025-04-09