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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffd537c024bdfb6eae7429bcdf9cbb8f3902b0f84db8914549e097e543508d0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39b4d790-1886-47b8-a041-6d728beca52f.json and https://artists.proofprofile.net/proofs/artist/39b4d790-1886-47b8-a041-6d728beca52f.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 → 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081c059a06aedb366d46142212f351dfe6efca28374ed5f375bf3abb0d0f48f2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBDKA0500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a4dcba4f5b77d65734f3c1c43bf8818317586395d06a99fa1a09783c2e634c. 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/GBDKA0500316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e8e4d0a25de83f31c498a588aad94ba67e27d904bf853dd65a3be47381a28b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBDKA0500317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c3a65068d16f84ab400654f4ea09d6c321caf48d69531b4ed29fd2659c07b9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBDKA0500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0478a81d54539e386fea586d6f22b101b37b90244d977e72856c1670952315ae. 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/GBDKA0500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffb2f6ef9370b95f5c023dc57791afb1b7405f693400edb26f529581d19e748. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBDKA0500320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929fe381276a652a349c303e2ca1bf3917b793e53a32ae78fb0a496a7645f951. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBDKA0500321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca2a41753b7f8a8b97d119c73d1b8d3962f0d09234ce8646faec0f007239d2e. 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/GBDKA0500322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69fe20677cc9fc6027087645befefd4bdcf02b7726374523a7d763540b32a9c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBDKA0500323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb6986d84025a04a484494bdee604b6aeab0616942a0e9802f109dd379926b8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBDKA0500324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc60c662286c0d22ae659105b2dceb0cfa956518cd4bcf9f3bfd99efbdb2c71c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBDKA0500325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc23321652ba470b3081e311dd7bb639f74b09fcfa847cf879c48e173a64463. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBDKA0500326.
Sempre Ricordo (Piano Concerto in A minor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a29b41bfbdb0bdf80875c3a8ae5e9e1c5d1a9ebd671682c85b59e1bdd157fdc. 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/GBCLS0202009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c0b06b3577d23e407e499900758980362e3210b5e67126efc6f2b68fd58656. 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/GBCLS0202002.
You Live On in My Heart (From "Cinema Paradiso")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6648cb252f77e09c63d5a67465a37bab431db7aca4f0edce53e6cb3b70aa739. 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/GBCLS0202008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9676e6a691ea220edc6c080aa89199342ded9352e325612a3436f0941c2a3e5e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBCLS0202010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05ffb1e6bf9784114face799662e47f0f80cbe964a970b2881631bf6ac77b25. 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/GBCLS0202011.
Les Contes d'Hoffmann, Act III: Barcarolle. "Belle nuit, ô nuit d'amour"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac4dfca764e37d686c7a20bd8603539d21adbc9a583f51318f2be3bc257a8c0. 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/GBCLS0202017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38aa1bf2fe3de35b4f88c2ba7d399425715892814505a0d38a8a78341cd4dad. 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/GBCLS0202015.
One Fine Day (Un Bel Di From Madame Butterfly) - The Official ITV World Cup 2002 Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455ec19592e6227c1a0768e9e3d967c3824deca49a98fc7b664c8af2b4f60d38. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBCLS0202019.
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
There's A Place (From The New World Symphony)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec70bce06f11d35a7ea4dc485074e583421c844507c78a5399fb208532d82b7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBCLS0202007.
Beyond Imagination (From A Midsummer Nights Dream)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98d2249c85a871b8247b7599d152a6e1696d4328411148642a5b83f96607f9b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBCLS0202004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607d204fd5e3fd8f6aa980ae475723002b45a9b5a7ddd6e0ffdf461e858d5a9d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBCLS0202006.
Ebben?..Ne Andro Lontano (from La Wally)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444bb8a32fa718993aa62543cebaf1d2936ab9fd3dbd02cdd30d98ecc50d4c5b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBCLS0202005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1a9f7e6134707e6f2197ec1e509255159a74360a67d618c9621cb3533bd886. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBCLS0202013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f906c292b46ad919a28aade5cce3f8b5dc6464c2b7bd55a88add1343d2f1c4. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GBCLS0202012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5499ca3c39addc2403c50e01a6afa20523b7dfc9878e13893e42b7c80151eef. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBCLS0202018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7cda17c0da9dff0cb4b04f2eddb9c12398106643d2abe2c3b2f7ee14f60673. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/GBCLS0202014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38aa1bf2fe3de35b4f88c2ba7d399425715892814505a0d38a8a78341cd4dad. 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/GBCLS0202015.