Marc UÅ
type: MusicGroup
genre: art rock
genre: electroclash
genre: math rock
popularity: 3
followers: 111
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x217034fd8745483ecbb1276b963f9d211eb0e7447087088a5dc8901c5c8e4a8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0751748-c6a5-4645-bca6-a5550df2c2cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0751748-c6a5-4645-bca6-a5550df2c2cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e0751748-c6a5-4645-bca6-a5550df2c2cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x217034fd8745483ecbb1276b963f9d211eb0e7447087088a5dc8901c5c8e4a8d","name":"Marc UÅ","registered_at":"2026-06-21T06:40:07Z","symbol":"NIM1847317","token_address":"0x8b5977fe9d53c9df30f644a6e24e81ee636a7c07","type":"artist","uuid":"e0751748-c6a5-4645-bca6-a5550df2c2cb"}
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 0x217034fd8745483ecbb1276b963f9d211eb0e7447087088a5dc8901c5c8e4a8d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0751748-c6a5-4645-bca6-a5550df2c2cb.json and https://artists.proofprofile.net/proofs/artist/e0751748-c6a5-4645-bca6-a5550df2c2cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x217034fd8745483ecbb1276b963f9d211eb0e7447087088a5dc8901c5c8e4a8d","name":"Marc UÅ","registered_at":"2026-06-21T06:40:07Z","symbol":"NIM1847317","token_address":"0x8b5977fe9d53c9df30f644a6e24e81ee636a7c07","type":"artist","uuid":"e0751748-c6a5-4645-bca6-a5550df2c2cb"}
album: Marc UÅ
  type: MusicAlbum
  date published: 2012-12-19
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  type: MusicAlbum
  date published: 2013-03-09
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  type: MusicAlbum
  date published: 2016-08-17
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  type: MusicAlbum
  date published: 2016-08-18
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  type: MusicAlbum
  date published: 2016-08-19
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  type: MusicAlbum
  date published: 2020-01-31
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  type: MusicAlbum
  date published: 2020-02-28