Marcos Ayerza
type: MusicGroup
description: Marcos Ayerza (born January 12, 1983, in Buenos Aires) is an Argentine retired rugby union player who played loose-head prop for the Leicester Tigers and his national team. His passion and aggression
popularity: 6
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52d9577474e66e66cdcb7020866de64d84ad6c615691bdbaa9b987f8153eee07
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee626949-b647-45c8-9a2b-d63bb8a62923.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee626949-b647-45c8-9a2b-d63bb8a62923.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ee626949-b647-45c8-9a2b-d63bb8a62923
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x52d9577474e66e66cdcb7020866de64d84ad6c615691bdbaa9b987f8153eee07","name":"Marcos Ayerza","registered_at":"2026-06-21T11:56:33Z","symbol":"NIM1916465","token_address":"0x3fdaa0945af848655864fef4f1d56276fe191a50","type":"artist","uuid":"ee626949-b647-45c8-9a2b-d63bb8a62923"}
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 0x52d9577474e66e66cdcb7020866de64d84ad6c615691bdbaa9b987f8153eee07. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee626949-b647-45c8-9a2b-d63bb8a62923.json and https://artists.proofprofile.net/proofs/artist/ee626949-b647-45c8-9a2b-d63bb8a62923.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x52d9577474e66e66cdcb7020866de64d84ad6c615691bdbaa9b987f8153eee07","name":"Marcos Ayerza","registered_at":"2026-06-21T11:56:33Z","symbol":"NIM1916465","token_address":"0x3fdaa0945af848655864fef4f1d56276fe191a50","type":"artist","uuid":"ee626949-b647-45c8-9a2b-d63bb8a62923"}