Svend Asmussen (28 February 1916 – 7 February 2017) was a Danish jazz violinist, known as "The Fiddling Viking". A Swing-style virtuoso, he played and recorded with many other notable jazz musicians,
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d823ed4b291334e62cf84ebe91a8242775395f52752961a78772275a206882b. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/061f4b20-19bb-468e-b420-ec63b8fa7c28.json and https://artists.proofprofile.net/proofs/artist/061f4b20-19bb-468e-b420-ec63b8fa7c28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hyggetimen Vol. 29 (Den första gång jag såg dig)
Vi stiller om til Vol. 16, ABC/Cabarethallen
Svend Asmussen Evergreens (Reel-to-Reel Version)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d59acf46b6ab3da716cd7ec1e89775963d4a86e8241794361a1c5a99be2c2dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKNA21203901.
The Incomparable Fiddler - Svend Asmussen 100 Years
Jazz Elite: Best Of Alice Babs & Sven Asmussen
Noaks Ark (Noah's Arch): I. Gubben och Gumman presenterar sig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c68c2cbe95876e5cc19e2097f665b5a168b7efe59fc9bc0f90a1490b55eb2bd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206201.
Noaks Ark (Noah's Arch): Käre, hur lång månde resan bli?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11292a3a4cd01231f455ae658880f73f306542feb2f4e575dc99393d6f4af218. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206202.
Noaks Ark (Noah's Arch): III. Det villande havet (orkester)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee334b739b15b9ce8cc9662ed192a1962605e898b9b1e9788a101ad5f72e170. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206203.
Noaks Ark (Noah's Arch): Så kom den omsider, vår stora stund - Landgången ut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c96dceb291c00ee35720989ef703d835892003b5115cc5388f505e506cf1860. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206204.
Noaks Ark (Noah's Arch): Var så goda och lämna båten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae90b972825be81df8886cbee0bf6182095fcc76ef7e5c2d1db98c24bc7e1a8c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206205.
Noaks Ark (Noah's Arch): Så trevligt att resan är klar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076141665dabee81d1e9f6098c82f135a38ff4d3db021aec7daa25631e9d5912. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206206.
Noaks Ark (Noah's Arch): Hundens sång - Grisarnas sång - Noshörning och flodhäst
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe663419793f7f0593e2773ab532420923e0f5b87fc5d28c7e7b52fb295167bea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206207.
Noaks Ark (Noah's Arch): Landgången gungar så det knaka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a1bf900b3aa4b1dd4ca63b80219d137db7656b2747f41431389f0f6242f136. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206208.
Noaks Ark (Noah's Arch): IX. Kissekatt, kissekissekatt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9ecb63a3c36ab8a4d5eee1ccd291e188a71ecf8467d1095f790d003e47c131. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206209.
Noaks Ark (Noah's Arch): X. Havet har lagt sig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3d08c667f18c095ee37af81037951d914ef36d39fb2c16aa9886b50ffeaac5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206210.
Noaks Ark (Noah's Arch): Ham är du redo? - Befolka nu jorden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f25a61b207568c5df30267c2cfdf79c167a706ef18f41db9641e7fe62a314f1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA1206211.
Alice Babs in Memoriam 1924-2014. Vi Minns Alice Babs 1924-2014: Swe-Danes
The Extraordinary Life And Music Of A Jazz Legend
Ed Thigpen in Copenhagen 1973-74 (resource/action-Re-Action)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fb457d52e3d488586d1dac407223a54090db023240179ddb990eacbfe8f35c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DKBDB0601209.
Oh, What a Day (Arr. by Bengt Hallberg) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201c9ab67d0f17e05140b52f4e7cd1fb3a67339d23fc2f6a7d74b6bb3a081530. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900401.
Die Csárdásfürstin, Act II: Weisst du es noch? (Arr. by Svend Asmussen) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177927a65004bd79bc40ca9fe2c4be506e0d83413a27a4b23b46010a2c0d6878. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900402.
Symphony No. 7, Op. 92: II. Allegretto (Arr. by Bengt Hallberg) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0aa78fa46a98b71c79b719dda61c1dad67508af08cd0b76da6e66ad4e7f2c45. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900403.
Groovin´ High (Arr. by Bengt Hallberg) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6f5d61997296f40e9df89fe2fd1f099b99ade6c6f2f50b1e2c93d3bdb7fb3d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900404.
Hambo om bakfoten (Arr. by Svend Asmussen) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84790f57617b41a8985a9cf50ee91fea0d9009c418b68b0e9ae9745ecc000d6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6779b8faf90d3a679f5fc8c388cc43e3329dab6e078829684486726e31eeb62. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900406.
Li'l Darlin' (Arr. by Bengt Hallberg) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9aeaabe9e2af7e2189b19ffc052668049f3c368efad6073b996647dd8abf0d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900407.
Dardanella (Arr. by Bengt Hallberg) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0364b6828cbdca2e337f193464c0739c0fc79516fac6010f521309d6791a776b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900408.
Dichterliebe, Op. 48: X. Hör ich das Liedchen klingen (Arr. by Svend Asmussen) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe878a54b50fe23b7766cd774bf1e6bf64b7365ce306ffbd6a268fb071ebadbb9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900409.
Domaredansen (Arr. by Bengt Hallberg) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa686719face6644cbb59445f193d4e62d75ea31a3e11d3fb3853c16a8f751178. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900410.
Pampadada (Arr. by Svend Asmussen) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967e45662d27a20551c643464cad00479502a088910a828baf9ccb386f96d04e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900411.
African Folk Song (Arr. by Bengt Hallberg) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ed12ed9d1791674467233cea32112bfc6e55e0ed2403dd68e8666fec506b2a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900412.
Sommar adjö (Arr. by Georg Riedel) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66eccef45114f79ca323961b92665e0e42a693339e108dab0d2b2904226da2a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900413.
Willst du dein Herz mir schenken, BWV 518 (Arr. by Svend Asmussen) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97507fe34dc4b6fc391f81bc1e733ebed73a4c958e14c5eefff75043e6c07db4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1829826c00e61a0097f2355fd2ac0ce8c53a15ef2dea339e3a047dac7d7ce8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900415.
Katthultsmarschen (Arr. by Georg Riedel) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c7c1f6972e489201b6ce557725b9afce1b23c81f0889a7233f13792535efbd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900416.
Det var en lördagsaften (Arr. by Svend Asmussen) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf6216277146d63dc619039dbdee953aab27120d9bd108b156d117678d5dcc2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900417.
It Don't Mean a Thing (Arr. by Bengt Hallberg) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb1288941bb36a6f997c03c34cd3a39aaa6adb6e58982ff7e6a037f1038858e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEBAA0900418.