Maria Rehnfeldt
type: MusicGroup
genre: pop-paraguayo
popularity: 2
followers: 529
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f3085b094182fbf0dfe69a2a8904eda5ce45c28a023f833bf3af814c66010a7
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/4bf401a6-4c28-4585-a7e3-05d47fa59e61.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4bf401a6-4c28-4585-a7e3-05d47fa59e61.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4bf401a6-4c28-4585-a7e3-05d47fa59e61
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6f3085b094182fbf0dfe69a2a8904eda5ce45c28a023f833bf3af814c66010a7","name":"Maria Rehnfeldt","registered_at":"2026-06-16T16:23:28Z","symbol":"NIM1108138","token_address":"0x49f05dbccb549d06f9c224c4eec02655755abe53","type":"artist","uuid":"4bf401a6-4c28-4585-a7e3-05d47fa59e61"}
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 0x6f3085b094182fbf0dfe69a2a8904eda5ce45c28a023f833bf3af814c66010a7. 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/4bf401a6-4c28-4585-a7e3-05d47fa59e61.json and https://artists.proofprofile.net/proofs/artist/4bf401a6-4c28-4585-a7e3-05d47fa59e61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x6f3085b094182fbf0dfe69a2a8904eda5ce45c28a023f833bf3af814c66010a7","name":"Maria Rehnfeldt","registered_at":"2026-06-16T16:23:28Z","symbol":"NIM1108138","token_address":"0x49f05dbccb549d06f9c224c4eec02655755abe53","type":"artist","uuid":"4bf401a6-4c28-4585-a7e3-05d47fa59e61"}
album: RUMBO
  type: MusicAlbum
  date published: 2022-12-16
album: Martes
  type: MusicAlbum
  date published: 2020-12-29
album: H
  type: MusicAlbum
  date published: 2024-08-30
album: copa de cristal
  type: MusicAlbum
  date published: 2023-06-21
album: Aparte
  type: MusicAlbum
  date published: 2020-05-22
album: Alguien Como Tú
  type: MusicAlbum
  date published: 2019-11-15
album: Don't Look Back (feat. Maria Rehnfeldt)
  type: MusicAlbum
  date published: 2017-05-29
album: Alguien Como Tú
  type: MusicAlbum
  date published: 2019-11-15