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 0x0418b4231f851492e78ab24775a92f747fd38635b4e05a7e2dee47c0664f3371. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32fafdfb-5d21-4454-adc8-120ac3cf417b.json and https://artists.proofprofile.net/proofs/artist/32fafdfb-5d21-4454-adc8-120ac3cf417b.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 0x0e53bbf85b0f4bf306a0e84817149f16edd4dc834232d9f9aed237c423f821f9. 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/CH6540855925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2684833239fd20e112d303ecdcaad14760b7befe3864d9bd4982389a99938215. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLWD8707801.
Sonata, Serenade and Scherzo: II. Serenade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf504d3ec12d2fbe3a586bf50523d86bfc059b64c5036240e6cb3d59f10ff8eba. 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/GBLWD8707805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072f43a2619920d851784230b421f380be55e381781bfc52973fb10b72840e1f. 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/GBLWD8707807.
Serenata (Arr. for Brass Band by Pearce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00700f049c600c73ddf7153adcd3dc2ce3af698862f9bda7ad24c2f9b7361124. 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/GBLWD8707808.
Capriccio Brilliante (Arr. for Brass Band by Sandy Smith)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009650527c3a900e01008c95325ae1cd7a3c52480f1473b90c242df475a6ced. 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/GBLWD8707811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a89d4fe838d24fe0242a7968c4729f6c09d423415f343007f50d57467cedd03. 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/GBLWD8707812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57f234c623f48309d11c9f4b26775853645d5edb658b791c5cb1c555be7b150. 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/GBLWD8707813.
A Million Dreams - From "The Greatest Showman"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9aa1415932287e356c876e71514c8700f1abf4538abb6eb5c8537a34d97bb8. 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/UKVLS1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c995b1f76fc829a7b4307a745b55e1bca73bf39b7a79941da436c154ab4ecee. 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/UKVLS1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fdb2183635ae625577b494d5c29cfeb57b16477095352aada5bbb976975eb4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UKVLS1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf403095d430fae6193d0d1741159557184d49a154217018995a50c596ed02cba. 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/UKVLS1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfab9c868d1b324eaa0fced5e0321741756eab24129fdca1cece9a0f96cf786b. 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/UKVLS1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d3fab2afd124e345f5ce2d2bf8987392c11525bae288b77b1e10b7cd220736. 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/UKVLS1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c734bd9d9ff47d245db82661507a057e60561f3f9a9dadc5a659d291596bc86. 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/UKVLS1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4f450582d85434d73c606dc7a8849ca6cd5d5b70a045ca805e3f2bd680e09d. 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/UKVLS1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38a747fa7b0457ddd8e916b8891f5e94d902a555b39f50801ed68a6c9c05e77. 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/UKVLS1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1330ec8e1a3298eb7715fa5c0ac1cbb48e99909451ebe95efb200e8b099181d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/UKVLS1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61765a01d83096eb9ff8e5a76e6ed5a81756e2c6c1ec9a8d16529c5ee06cb4ff. 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/UKVLS1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdebf1a42cc961d51bc968bbef3ef2458d9f7d8281e3de2a31105c3c3c578067. 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/NLC350814910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bfe918b87d9de46dfa20297cd0c32ba6af0ccca7c215fe697f774895f6587d. 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/NLC350814911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65be7416c0aa8e05f9b3167a752d645bb5ff746e9403899769dc7423d43a0756. 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/ATP570269010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfe64b43f79c552c898de2f39dba3c300fd8b779c5073ef137d3e5b8ef02adb. 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/ATP570269050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c91c52453d23ffc415044cdb35f80714fa7d33a3c2f544e56e5f8c0ff0b1bb4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ATP570269070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea51060121d87e82b7e3d016ca53012c9729fcaf4434bf5fe6cd1d3e7f37538. 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/CH6540891612.
Songs of Praise: A Celebration of Religious Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8bff2f5ff93d6aa63d936d5876bfc3a21f523223e9f74f1a1785a45ee635d0. 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/QMGXA1640535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409c7a697ce3184b86706894c692f60e88393a0443f975b5d100df7989a16207. 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/QMGXA1640539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc721fff89f6442cc0e19ba287ac1d6b4e9c3c718e7d57be069569fba20a08ba1. 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/QMGXA1640540.