Ekaterina Mechetina
type: MusicGroup
popularity: 4
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa358d98cc981033de57d7fa6a62dcda68b3e64a98ac5980c5a7a28c144af2347
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0175e04-5992-4609-a95d-87c56001df48.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0175e04-5992-4609-a95d-87c56001df48.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e0175e04-5992-4609-a95d-87c56001df48
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa358d98cc981033de57d7fa6a62dcda68b3e64a98ac5980c5a7a28c144af2347","name":"Ekaterina Mechetina","registered_at":"2026-06-21T06:21:55Z","symbol":"NIM1847041","token_address":"0x349f314b336c54e9f60fec82b3ab1369ec392ba3","type":"artist","uuid":"e0175e04-5992-4609-a95d-87c56001df48"}
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 0xa358d98cc981033de57d7fa6a62dcda68b3e64a98ac5980c5a7a28c144af2347. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0175e04-5992-4609-a95d-87c56001df48.json and https://artists.proofprofile.net/proofs/artist/e0175e04-5992-4609-a95d-87c56001df48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xa358d98cc981033de57d7fa6a62dcda68b3e64a98ac5980c5a7a28c144af2347","name":"Ekaterina Mechetina","registered_at":"2026-06-21T06:21:55Z","symbol":"NIM1847041","token_address":"0x349f314b336c54e9f60fec82b3ab1369ec392ba3","type":"artist","uuid":"e0175e04-5992-4609-a95d-87c56001df48"}
album: Schedrin Shakhidi
  type: MusicAlbum
  date published: 2009-12-09
album: Ekaterina Mechetina Plays Tchaikovsky, Rachmaninov & Mussorgsky
  type: MusicAlbum
  date published: 2013-07-14
album: What Dreams May Come
  type: MusicAlbum
  date published: 2018-09-24
album: Gershwin, Ravel: Piano Concertos
  type: MusicAlbum
  date published: 2021-11-25