1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38c85f5c148ea06c92dac8c1b42eb39c87d281ea3092dba65b7b1895586ee81. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41d917c1-b92d-4cc2-9f4c-adaa845b8540.json and https://artists.proofprofile.net/proofs/artist/41d917c1-b92d-4cc2-9f4c-adaa845b8540.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7cf1d2226f279ff208f73834fd7cde14f2709d78e808e92cd38e2b4e8a7f09. 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/SEXMC1700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc952f3cefcf670cb3eefeae4f1202b4c8d291c5a41779eaad17fab86f184e865. 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/SEXMC1700202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6d605f404d81f3c086ec470494c872bc9a11246995fb5e99e8c8b2d0ce1b64. 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/SEXMC1700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc538e4f36486b58649efcc397878c1809a59913163f693bafe50191de70767. 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/SEXMC1700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa42c3c2e3240bd974a47138de49fff4ed0fa4ca9b56c3b6dced31a8875ee3a2. 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/SEXMC1700205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8ba97ad2f122beb4272a1472bf64847929d15e5a770baa32712169ae25b6e3. 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/SEXMC1700206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33322216f719655f2046f25dcbaf8a9e98778907e5d4ecb6a2f519cbaf58102. 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/SEXMC1700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f1a299f2b47bd95824b067576e12cdf2fbd6fc021dc4e91b56f603955a5ed6. 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/SEXMC1700208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71055d7203a5df4aa5eca07d4b2392abdf2f1e8204c235c13cb5662dcad2f45d. 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/SEXMC1700209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f1650b43e414eb11271f1a62d86e75e132f473e6c240fa688a9a5eeb63e4cc. 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/SEXMC1700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d341596814f23beb42daa8a9d242d2d1abc2662568a44d0c23be5b2890d8110. 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/SEXMC1700211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233c441cc6736bad9e11f788a84a61bc07ddb42c0742905297ca62d541e36cca. 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/SEXMC1700212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e3e3b1d36334beebb13a0244aff32aefeab6700eb0ddaedcb990ebc39a2c24. 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/SEXMC1700213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea6284149641f9ac1d3aa2979b86627cb644e5dd269bc89538e99e03600e708. 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/SEXMC1700214.
Gammelpolskor, tre polskor efter Päkkos Gustaf
Polska till Shivakumar / Nya Indiska av Ellika Frisell
Polska efter Bleckå Anders efter Gössa Anders
Skogspolska, polska efter Päckos Olle (b)
Polska efter Ole Hjorth och Hjort Anders
Hjortingens polska, polska efter Hjort Anders
Springlek efter Holshagen efter Hans W Brimi
Forslundspolskan efter Gössa Anders Andersson
Ack om jag hade, polska efter Gössa Anders / Polska efter Gössa Anders
Tokpolska med Sven Ahlbäck och Mats Edén
Polska, efter Minu Per/ Brudpolska, efter Jannisa Per Hansson
Brudhisslåt från Skattungsbyn, efter Erik Bengtsson
Lyckovalsen (arr. B. Stabi and B. Janson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb6c93aad9ba1939b3a196814dcefe695566e6209c079e70b1a6d6b71910404. 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/SEWKE0700101.
Rheinlander fran Roras (arr. B. Stabi and B. Janson)
Kalle och Lisas Skanklat (arr. B. Stabi and B. Janson)
Langdans fran Vamhus och Mandagslaten (arr. B. Stabi and B. Janson)
Systerpolska No. 2 (arr. B. Stabi and B. Janson)
Trettondedagslaten och Tandvarken (arr. B. Stabi and B. Janson)
Fransk-kanadensisk vals (arr. B. Stabi and B. Janson)
Bjornes Schottis (arr. B. Stabi and B. Janson)
Schottis efter Harg (arr. B. Stabi and B. Janson)
Lorichspolska (arr. B. Stabi and B. Janson): No. 1. —
Lorichspolska (arr. B. Stabi and B. Janson): No. 3. —
Sjuplatarlaten (arr. B. Stabi and B. Janson)
Ore Systerpolskor (arr. B. Stabi and B. Janson)
Sabb Jons Polska (arr. B. Stabi and B. Janson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc8d8a725a6686a3623c14b1cad270ad435ee1728375d7f675ae8718058467e. 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/SEWKE0700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc031f3672882bceb13d5e3c283b938c7f5ae72ee340dd3bf80a8c24817532551. 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/SEAGA1501507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6124f5c27bb1b9c23d60c464ef49cddbdd943d09a9ac35f36006df881e8884b. 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/SEAGA1501518.
Den gråtande drängen/Polska efter Kus Erik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f55cb191681c62c41646aaa3b705e4e53744ad52e9b94374364c0129e3cbdba. 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/SEXMC2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9605bbfcc8a725066379cac3d871c0bf1f8e0e7f8519222237f4134b4f846bbd. 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/SEXMC2400405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ff3b51347e174b76673109b536c3dcca11bb75a4d80aa87b594f8ce5473b86. 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/SEXMC2400406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ba79a047d6f4c3b60bf3436fdf7ce131545b59bf33f10b36165e09ea10aae2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEXMC2400408.