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 0xea81e7272ae7cb79a12b8ac890679b36b5b51ae02f19c27ec1c3988e46a47bbf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac704cb6-e63c-46cb-9777-6a0405121d2e.json and https://artists.proofprofile.net/proofs/artist/ac704cb6-e63c-46cb-9777-6a0405121d2e.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 0x0181c0968560db714de8b2efbc8c0371bc6be8a2593c1d4bd9ef1cd73604e132. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBSMU9193056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8073ddb10bc90b62dc113f831bd846f58473df6cfbf78e0d4f41102dd5fe0e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBSMU9487658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7389dc963b25f305599a891b59e36d6b54221f0dc330abd6dc13638fbce5be. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBSMU9650323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a575289b6c1ca8d05a154d99e8971ed2135ee4eb275e9a944c8cf6bd1d18512. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:04:49Z), 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/GBSMU9650326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf52ca722d1396cefed2b6141757749d287b6e1817025f97e5ce09f799558da. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:59:43Z), 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/GBSMU0040971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516011ae0e1a3fe5650b2477f18fa8da15b127c9b2ab8c9359c32d1c90800ee8. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/GBSMU0021706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1684caee6a82058c78aed04e51fb4db89f95e560b6e0758b7cc316e3ee3adb75. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBSMU0021708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3792f4756ea9e82ea45dcb70026c4511b336ff959cebfdc4ad030818f0e92a3a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBSMU0092579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968f0caf8dc8f6b7f9be791e1aa1c2a04cb8f043e1c5d3cd43da340404464a32. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GX5MY2139149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3524cdce624d412d705de2687b48149bf39de762247fab56d10171e7b7d9c2fa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX5MY2139145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415c4be1204731a264c3cae6ffb432c2f40ab9e286c090053d9cb01e4b2d7bfd. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:06:16Z), 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/GX89G2205430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3eb2fa1463ffb69c737242facbf6cff452619c253da46cbafff2843707bc70. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GX89G2205432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afb5c785e9cf848b382a3afcdf35330a82af8186bb8e3d0474536e5bade9c37. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX89G2373069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a06a4c48cdf45ccab3e4fad780d71236bfbfaee6b77fb93d2685edabc5de71. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX89G2390714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4734cfd77a8f72044f2db6e8d42236a02b6a83815ecdc21ab2042f37cd41ac0c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX5MY2313652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da40e17635c5bc2e077dab007a36b04b8262635d65f9a99b3bbfa857d5b8b06. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:26:06Z), 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/GX8KD2486190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f4169182caf1cec9626c3b3aac4a82b180495462c92bdb04b704aa90d9f76e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GXBDT2477510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1a4905a710bed374da83329f23f10197791b80a94fa117a3b1ea24bf799193. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GXBDT2490330.