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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ffa8dc6d6bb171740e1a009ada73b36cd106077075e05ff18674039f701a59. 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/b0f540c3-93ea-46e8-bc20-39e1d314a538.json and https://artists.proofprofile.net/proofs/artist/b0f540c3-93ea-46e8-bc20-39e1d314a538.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8322eac900fac6acabc06305c85316cc4cb6fd4c9e076d696560238490ba7deb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USCGJ1066350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9637696a1bb0751800434468d0c4633adc235e2584b8df720732cfd0d7435f11. 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/USCGJ1066360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfa40c58952988be979d9436f2fbddaa607ae1be1889787adab372d2fdfcfa8. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QMQTX1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f89a9db6a9fa8ee540b6b7a0e22e44c51d317bce5b456b657100b73bfb01bc6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QMQTX1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3beda72132fac8add9cec7ba462496189c391981b78da18d309f37bc2bcc760. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QMQTX1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dd10ccddfd43694c80980d020aaf0a27136b4fdbf7c62b16bd0adf4adc5523. 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/QMQTX1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03bed9fa83f5df01e7433460d404de976ff698d60a3fdf4e6ebefe1d3edb818. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMQTX1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6376d8c8d41faf70c344aa2a5b5d672053462efc50afc9ceb0c9599d6d49e5d4. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QMQTX1200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf033ad2ad728610a14845257b2a95beaee808b9621a38e7f0c4944fcd3c08115. 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/QMQTX1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca06724befc837c7b3bd2c512fd7c4a3053bda7f2123205912f09867b4bdf9e. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZ4JJ1632374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179f2b83473dc09064f22502c0db38c96b571aaa8460fd48b943cda064e823c1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMQTX1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac43f3c2eb4b3695488b1bc447bb8d41a264667085cec377fc89e26fe21d4a04. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QMQTX1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e4e79197274ba8fc94e5677f7799d5383d158497bf97d905ee7bbaf1e30a07. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QMQTX1700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80ef146ddec6bd43ebada7a8f712f89a0d71610289b5c6eac56e5315c560900. 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/QMQTX2000203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7500298cd192c06a8e5dbb5e3a02b9814d5e647a022ebeb39f03540a6c819bbc. 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/IEWGI2204756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec145f20dd7ccd55812beb428f3418e1ceb67f362ea8a93fd7bbad2a8640ad2. 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/US3DF2508302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3f11ab561c291b27d5aae2cddbf967b52745c49936436eb9b75e4750eb9542. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/US3DF2508303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed24c6916b5f6afe2446ff2fcaa8339fae6405b58112785fc75fc37aa51d007. 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/US3DF2508304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4849a4bf9d91366a00a8eec998621d41506a3162f99ebfb2efd182da0a23eb. 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/US3DF2508796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8102cd0ce6f1a9aebf56b9bfd32e1969014dbca194a90b47cbba109c1f9364a. 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/US3DF2508797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669769c5ce6cd4a82aba1bb5a97f62878afc8051e61609c7697b05ef2a721384. 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/US3DF2508798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d126abc5dd180700bcc2fba635930856346d60e33e05b75bc52f1b1606b9d5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US3DF2508800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a71c346fc8d5ff993b98743b40e45f272a80d401dff4e84934795d96b431a77. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US3DF2508801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0eda0c998d6509b655dfe0a8bf77cafa54649df74f261de5a6fe24a1f31b403. 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/USJJX2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e34056305d7c069f981a5ae04baea61fead15437d0fbafc7ae7eafeaa380112. 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/USHM22151859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0c39cc1515f2aacfc878dea97939068d1b4ea770ddd3f2126187aec2bc257f. 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/QZC5T2200124.
Mere Ram (Live in the Redwoods) (Connection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874d65eb438547e29bbcb50fb48e1ca16078fc14485ebd31fe73bc29a0e00d0f. 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/USKHG1400033.