Hróðmar Ingi Sigurbjörnsson
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album: Stokkseyri
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  date published: 2000-01-01
album: Stokkseyri
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  date published: 2000-01-01
album: Skálholtsmessa - Hróðmar Ingi Sigurbjörnsson
  type: MusicAlbum
  date published: 2002-01-01
album: Skálholtsmessa - Hróðmar Ingi Sigurbjörnsson
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  date published: 2002-01-01
track: Enginn grætur Íslending
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  by artist: The Hamrahlíð Choir
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    date published: 2002-01-01
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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
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    date published: 2026-07-31T17:29:52Z
  audio: Enginn grætur Íslending
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track: Feralok
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  by artist: Hróðmar Ingi Sigurbjörnsson
  by artist: The Hamrahlíð Choir
  in album: Vorkvæði um Ísland
    type: MusicAlbum
    date published: 2002-01-01
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75719487ded4bd01e7e85dc9ca5150b6021443b11a052169bdc9d6d21e56b03a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISC100200506.
    date published: 2026-07-08T03:22:41Z
  audio: Feralok
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