Ibon Koteron
type: MusicGroup
genre: traditional music
description: thumb|right|Ibon Koteron Ibon Koteron (born in Bilbao in 1967) is a Basque musician renowned as a player of the alboka. His 1996 debut release was a joint record with Kepa Junkera, Leonen Orroak (the
popularity: 2
followers: 239
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x090efe23a96c9c657d887617951cd020085449795dd5da2557aa031fa4c6375d
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/48c068b0-9029-48f4-9ee4-26d9d5218a61.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48c068b0-9029-48f4-9ee4-26d9d5218a61.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/48c068b0-9029-48f4-9ee4-26d9d5218a61
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x090efe23a96c9c657d887617951cd020085449795dd5da2557aa031fa4c6375d","name":"Ibon Koteron","registered_at":"2026-06-16T14:55:20Z","symbol":"NIM1087108","token_address":"0x35df6fff69e1f0200b11d40254747acec61042c9","type":"artist","uuid":"48c068b0-9029-48f4-9ee4-26d9d5218a61"}
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 0x090efe23a96c9c657d887617951cd020085449795dd5da2557aa031fa4c6375d. 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/48c068b0-9029-48f4-9ee4-26d9d5218a61.json and https://artists.proofprofile.net/proofs/artist/48c068b0-9029-48f4-9ee4-26d9d5218a61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x090efe23a96c9c657d887617951cd020085449795dd5da2557aa031fa4c6375d","name":"Ibon Koteron","registered_at":"2026-06-16T14:55:20Z","symbol":"NIM1087108","token_address":"0x35df6fff69e1f0200b11d40254747acec61042c9","type":"artist","uuid":"48c068b0-9029-48f4-9ee4-26d9d5218a61"}
album: Airea
  type: MusicAlbum
  date published: 2004