Rolf Kirkvaag
type: MusicGroup
description: Rolf Kirkvaag (20 September 1920 – 24 January 2003) was a Norwegian journalist, and a radio and TV personality. He worked for NRK, the Norwegian state broadcasting network, between 1947 and 1959, and
track: Lykkeliten
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  by artist: Rolf Kirkvaag
  in album: Slagerønsker
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    date published: 2016-01-09
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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: 2026-07-30T12:06:10Z
  audio: Lykkeliten
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