Martin Kristensen
type: MusicGroup
genre: dansktop
description: Martin Kristensen (9 July 1921 – 29 April 1980) was a Danish footballer. He played in one match for the Denmark national football team in 1952. References External links Category:1921 births Cate
popularity: 14
followers: 214
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  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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-14T17:49:01Z
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album: Worldies 2015 (feat. Stine Stensager)
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  date published: 2015-04-15
  track: Worldies 2015 (feat. Stine Stensager)
album: Dobbelt Op På Nederen
  type: MusicAlbum
  date published: 2011-01-08
  track: Dobbelt Op På Nederen
album: Ole Sangen
  type: MusicAlbum
  date published: 2011-01-06
  track: Ole Sangen

Worldies 2015 (feat. Stine Stensager)
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  date published: 2015-04-15
genre: dansktop
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Worldies 2015 (feat. Stine Stensager)
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Dobbelt Op På Nederen
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duration: PT3M57S
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explicit: false
by artist: Martin Kristensen
in album: Dobbelt Op På Nederen
  type: MusicAlbum
  date published: 2011-01-08
genre: dansktop
isrc code: TCAAU1116443
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Dobbelt Op På Nederen
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Ole Sangen
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duration: PT2M22S
duration ms: 142293
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by artist: Martin Kristensen
in album: Ole Sangen
  type: MusicAlbum
  date published: 2011-01-06
genre: dansktop
isrc code: TCAAU1111689
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Ole Sangen
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