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 0x09868a434b87fa528426cff6c49547d5e4dd8ba0952a402a3f675a6bdd18f943. 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/bf68fa51-28e4-4387-81f5-8d295ecc36c8.json and https://artists.proofprofile.net/proofs/artist/bf68fa51-28e4-4387-81f5-8d295ecc36c8.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 0xa057b2056c3d87e6831e14fe876b3f053b9b0e50508b727a10fe9d17495ef59e. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBSMU7233004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8ca9c02a0f3896e90118f477824f309dc9a75bc24951a859bcd86cbe4a100d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBSMU7233005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c3573193d637e5fd5f487e339d1ef3c2160c08fe29fdf2eef10e8a2845879e. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GBSMU7233006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0333d17ddc777484996cf3231c3233e6a8d147d737ef45835d2489a52b912a1c. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GBSMU7233009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f930eb308c144658233023222262b08ebcc1f233c09bc7cf6d469a102349aa9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBSMU7233011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252e64ac6065ebbe77d70bb69469106e4136d833043a37a2ad33384272c0693f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:28:59Z), 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/GBSMU7233017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e284f37caf9d82bcbac4492862479ec894597eb4bbdac21a8d8c52d5262fbf. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GBSMU7362394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69e34e13da72f9f33d7ae1593c3560a1159022542bb278d66cf292e16a85ad4. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBSMU7362396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80028e49c8464d61408e3b2801169806aefa42d016cbb0e9907ddd87e68e73d1. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:09:43Z), 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/GBSMU7362397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c138c8d02099fadf35c285e7efdf7f13f83e69b086f68ac00aa991dbbbf9be. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:39:19Z), 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/GBSMU8477960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a4321afca01650b348b488f60655331053769e13b349748e2c5cfb139106ec. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/GBSMU8477963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd21eed145d5af13ea0638a3d4bb24a6e1484589803c45437e388c550b0280d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBSMU8706762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa61354e80549fb2dcf8dd6776eeb019ec69c0f420a521967cf3e6fc59407b5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:34:45Z), 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/GBSMU8706769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0085b76f7c8665e76a78b380f4245bd4a272f37e8ae4b758ba5a40e88c59acb. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:15:27Z), 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/GBSMU8706771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edaada71c5c90614620d0a697392cda0a45b2f6a36fee9bfbd8b228e0566d6f. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/GBSMU9238392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331199da23bef0931c73bd552c9a708c0356f3b5c0b9acaeca21e57507d1e2c6. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:23:32Z), 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/GBSMU9291963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6522603e475d9294ec1c68761b8c7a07512ac94c64ef25d1c96e3a12927973fa. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBSMU9291965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e6d69022db4a8fa48917111cd8bf4898ec77edbe2c9dd9796f6dd1a1f97c7a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBSMU9291966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebee178f6b6dcb31bdf6d9378b79327df60c1e1c5326db314ef1a83bb430456. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBSMU9291968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad3a09ef90b1a85b7d854ca82cfa954c8957d21912156aaca0e9e33594a9f43. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/GBSMU9291969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6142a0ebc0d709537847b5eb6e26adeed4fe7e39d1a0d2796bc3bc8e1369869. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GX4R52114753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f5e799beb930cb6a36f6c4b414632219b47881224351d2ce0c30712d0a4c8d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GX4R52114757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d96480985bd1fd594a1e97ac5fad5a947f9ba219eb92f38702d698a3d14d210. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBSMU0003147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43ca1b221fd1188a9964b613bf1a0e31a0f55238f620a6e3155c15b07598246. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBSMU0003150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a498506094ae8afb90234519cbd10e5cec2eb959f63d1827ba23d8ce312298. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBSMU0003152.