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 0x7ce0ebb27bd84d20210e2a3b2ade6687c108cd59618f9e0c29c042df56828cf8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46a89fde-dc04-41ea-9c4c-93ff964cacd5.json and https://artists.proofprofile.net/proofs/artist/46a89fde-dc04-41ea-9c4c-93ff964cacd5.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 0xc68a934e505d4c8e378a8c1b05aa12acbf3071d06a064da30c1325d4a1caa7a8. 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/PLA559300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3122b4996ccf9fba42be06bf608c16ae6c7204e25a6148c6d3b98689f3f1f3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PLA559300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0dc3ca6b626d95f1f33c0e94c460703a132a2ea6a3aef26ee3f388c598d4f4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/PLA559300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1419c67ffde5f331051eed5ede06ea3d5e0b241113bd3a1b955b5a56f12649dc. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/PLA559300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa617cb36581cac412e69033381444d2e4aa8da3fc7cfa49a2696d0c0a3143412. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/PLA559100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d6c5d98564a8f8c1d3099af1c84e37f9f89f39d0fbe57f075d4d26781847e7. 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/PLA559100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd58ea634fe6a0bbcd6af90d4d92062132bd79a5529ab87fae32811358b22cd. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/PLA559100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877c0dceed9a86d548b1051074b96c7c499c338dfc738285970a46c4633a3489. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/PLA559100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdc12efe6d7f864fa0f3184724952b2c594396d8704a704dc79da03505c4b8b. 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/PLA559100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23f9058dd74651ec1aeefcd287b51c0615be164145e2587bb0299eca95c6d51. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PLA559100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c339951267be83770db8d1e791411834880b6f8b93013edb1519890a214b63f. Chain 2 (Bitcoin): anchored in block 957648 (2026-07-12T03:52:24Z), 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/PLA559800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504c11e069f41c8864d10a81dfc4e1e81b1c22d0eafe691c189b40ec88f7dacb. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/PLA559800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ef54e862d1ae987b8c86ffb030d974259cefc5ec66749a4fe473fa2f5d4938. 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/PLA559800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fafcbe92299675e1831aa6a7fdde8533861abd2875243aa3e2fe71b1ff2ec1. 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/PLA559800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97149e0fd906ca2b7dc2cdc9333b032b9defcaf695cff40a3102edd3884dfa37. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:31:21Z), 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/PLA559800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c2012d32bcb32720bf077267df008fdfd4ec45c4c4c6c4dcddfc297ecf4534. 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/PLA550100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf27add188a937c601ccb54303b05ecf99e5187a8c7a6a4abe8433707323b60. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PLA550100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f4d10fd6ab0d9ae71a86c33dbb8091b93fa044435f46dbb4cba4cf56fac406. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/PLA550100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3316b0f6595e3c26de5009f35b42cf6b3fc044cb029ad2d026e6f29b5d82296b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:38:54Z), 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/PLA559500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b52b26b11963091369f4e99eb6ed54ccee3709616ec1a6ee6fba433b30030de. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PLA559500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa617cb36581cac412e69033381444d2e4aa8da3fc7cfa49a2696d0c0a3143412. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/PLA559100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e885f5332d0e4519d789f653a7f91ca87b0b08e05b5a9f7ceb08b58753a93b. 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/PLA559800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f9a46c952130daa52fece13d22a3bc1a0de35ec1bbeb675abc8ccaa500c7f7. 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/PLA559300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2419064fd1b06c527551bc831034306b47c04cb4aa6b7f38f49b907827bd27e3. 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/PLA559300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2419064fd1b06c527551bc831034306b47c04cb4aa6b7f38f49b907827bd27e3. 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/PLA559300049.