Viktor Widqvist
type: MusicGroup
description: Viktor Widkvist (1881–1952) was a Swedish military musician and composer. Career He was born Viktor Magnus Widkvist in Stockholm in the Jakob och Johannes parish on 27 December 1881. Viktor was the
popularity: 6
followers: 37
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additional property: OTSVerifyInstructions
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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: 2026-06-20T06:31:18Z
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track: Under blågul fana
track: Norrlandsfarger: Norrlandsfärger
track: Svenska armens honnörsmarsch
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  by artist: Viktor Widqvist
  by artist: Royal Swedish Army Conscript Band
  by artist: Mats Janhagen
  in album: The Marches of the Royal Swedish Army
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    date published: 2018-05-04
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Svenska armens honnörsmarsch
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track: Bodens ingenjörregementes marsch
track: Norrlandsfärger

Under blågul fana
type: MusicRecording
duration: PT3M25S
duration ms: 205853
explicit: false
by artist: Viktor Widqvist
by artist: Gothenburg Musicians
by artist: Jerker Johansson
in album: Swedish March Favorites (GöteborgsMusiken)
  type: MusicAlbum
  date published: 1999-12-09
isrc code: HKI199314504
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Under blågul fana
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  additional property: Acousticness
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Norrlandsfarger: Norrlandsfärger
type: MusicRecording
duration: PT2M53S
duration ms: 173493
explicit: false
by artist: Viktor Widqvist
by artist: Gothenburg Musicians
by artist: Jerker Johansson
in album: Swedish March Favorites (GöteborgsMusiken)
  type: MusicAlbum
  date published: 1999-12-09
isrc code: HKI199314515
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201a0c6c6cbe041ba0da4b41caa1fe226d87ffeafe9322b90673953ac36d19a1. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/HKI199314515.
  date published: 2026-07-13T07:54:01Z
audio: Norrlandsfarger: Norrlandsfärger
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Bodens ingenjörregementes marsch
type: MusicRecording
duration: PT2M37S
duration ms: 157466
explicit: false
by artist: Viktor Widqvist
by artist: Royal Swedish Army Conscript Band
by artist: Torgny Hanson
in album: The Marches of the Royal Swedish Army
  type: MusicAlbum
  date published: 2018-05-04
isrc code: SERLE9805030
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a924fb1ca0a3576f56bb9140ff8e89201755500e773021089a48362d5355f2. 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/SERLE9805030.
  date published: 2026-07-08T03:22:41Z
audio: Bodens ingenjörregementes marsch
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Norrlandsfärger
type: MusicRecording
duration: PT2M47S
duration ms: 167178
explicit: false
by artist: Viktor Widqvist
by artist: Forsvarets Stabsmusikkorps
by artist: Andreas Hanson
in album: Officer's Own 2: 22 Favorite Marches
  type: MusicAlbum
  date published: 2013-08-01
isrc code: NODGN1302050
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6224d6e65ea1223a4876070c2b41683c2be068e4771a58c6c648df768d8c21. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NODGN1302050.
  date published: 2026-07-08T03:20:19Z
audio: Norrlandsfärger
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  additional property: Key Name
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Norrlandsfärger
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duration: PT3M1S
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by artist: Viktor Widqvist
by artist: Northern Band of the Royal Swedish Army
by artist: Torgny Hanson
in album: På post för Sverige
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  date published: 2018-04-06
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadcf884a6de5f0e488ce36a8410072dd71154d3fcb2bed56f751753813887d5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SERLE9605020.
  date published: 2026-07-08T03:53:27Z
audio: Norrlandsfärger
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