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 0x7d61fdec605267557b6d5c1fafa2c033e37d961b0cf2205655b19a7595aebed8. 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/be932c71-3bb8-4008-9ff9-9d31d63e36df.json and https://artists.proofprofile.net/proofs/artist/be932c71-3bb8-4008-9ff9-9d31d63e36df.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 0x8bdd71a47167525f50c93c7a4e14d8a4fa092843cca4617909b6c4ea21ac71fd. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBCFB1000903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b984ebe32bc1109ce5dd847bbc77d9f5eccada0709710130ca59263530f5519. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GBCFB1000904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2059290f8ef7e4c841227fb0c70a0b1f3801e2c2090f1aec15e15da0fbbf8065. 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/GBCFB1000905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4ef486d1fe912e1cdd97b5140e8f531aeb5408d79a7a3b7023a90c2de5b002. 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/GBCFB1000906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ed6f2d1d001764128135d694cc0d0b52405b1232e9093a1dec550a8d34bf2a. 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/GBCFB1000907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf697daaf63a2d5137fedbc2a5fb15991c5a0aaff423fbbdb806a755783853d80. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBCFB1000910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb45c0af381ba31af5db2b8fb73d4ccd25b3be4150aaa34cd79f71f7db66ceb. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:51Z), 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/GBCFB1101202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8036b95fa356758e8a0799c8be180e700bbb78039a9b70d72467b1403cc4d8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:00:10Z), 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/GBCFB1000902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cac7627df7f61e5ae279cc4296d054c6a76955f4dfc0e30ab24e89b75a7b60. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T00:59:27Z), 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/GBCFB1101204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2c3f2575abb66680e76dbec694e4617d127f92ff8d733cbf43e6cd68fbf5fe. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:14:55Z), 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/GBCFB1101208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9c260a572474cff37f4c2be002a1f736c6725c6425a64a6b76019cd9c9b70f. 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/GBCFB1101209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854a392b557b547fdea48b7442b040ca99750b008396a81c36279266317bb9cc. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:06:20Z), 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/GBCFB1101210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5780d273be533b76d72ac6fc0aca718dada70a8f584a9f8dcd04c65f30cb8833. 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/GBCFB1206102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b3dc57675b6ec1b7e964857f39653e9233064825bca13c8bd213b0b8dcf2b3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBCFB1502502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a4bf694dd3a5c4bc8454f504cb44366256098654dc8c9893517e9b94764dff. 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/GBCFB1502507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a38f14469298430ee3bd4effbc0e61035bbd24dcd462ca6faf509b5d153a6e6. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:55:24Z), 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/GBCFB1700431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f5a35c2f0454a2a03dc37c79fd7f3511f839c2d628cf0a5fc064cb7fa0010a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBCFB1700483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3460bda84e029928dd68a04d3b15dfb2106c6f5372fcd8f8577d60a6541dae3. 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/GBCFB1700484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57ee2ada4be29047e53b95a742e5715442551bc443be0f3ed1c31d160f5a44f. 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/GBCFB1700485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87640f9a06c24fcedd481bc562a6f6423256479d7bba38c21c3bd5ae30ba379f. 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/GBCFB1700488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455e11a154da3f7358d481bb66318d110b7948075a033e27a4a5f5af6eb70fe0. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:47Z), 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/GBCFB1700492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f65489e1abb6b6ab26238c12de34eed85479ea1c50c5ff03b1422320a5bfd3e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBCFB1800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30241b1f66b578d34d3717acf2c6d62b2c6d3e114861783eb2dee6ba5ccae89c. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/NLP8D1900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e1588db7815da2d10495e67ca6f354fd8b4ea190f2741622760793218debdf. 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/DEP962400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7978a0e2fee6a58144d617afb2554268e4f6fa9e54cb7fc1ad4ea3429fdfbb29. 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/DEP962400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebcdb9ffb108e141ae1390c983b226bae38a916819b95d159a7b535ce8c3f63. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEP962400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f5c16c3b452ead1bea30c1bbbb3c1c40859d8c9ae688f660dc90a4d478db64. 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/DEP962400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306b4a1b24402c02ed603d848ab5dcd49439a68c25b24f79f3ea0fb545d4253a. 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/DEP962400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2071dd74f9ec10599879b987117d8726442c92646e8d5df54d436707439bbd2b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:53:44Z), 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/DEP962400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9dadc29a0f9e109d3a0bc6479f4416b1dba8f1b7e9f81e03464adf41dfce88. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/DEP962500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2de5a3d62f28ab55ead3d00a8c8c157c3f9fa2a507468d3ca5c8ebe531dc6ec. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEP962500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024b917722ada630dc3b199341a7ec7f78b6d2f34e67f3d740a2b31c7b220788. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCFB1500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d1a286ae9651026fccb2715539817c29b69d9457d96e8b11bd5738b3ed9a7e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR10S2551836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56494eeed7313d775c800d06f9c956dd762245d13c666718adf50d4bbef8e487. 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/GBJX33116003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765c08006f403f68dca012539c313ddcbea139e60449098fe0c510412a0e0f3a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBPWR1600521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d9185595b13445fd1cb4fc7baae7a0e6b2e2965d18013f6c172ac77bce17ca. 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/GBPWR1600591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136b12549683d35a6018505c0e2c7f08c7fd25e1fbb1d20c319a201ec133e259. 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/DEBE72200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516c985dd2489c680fae7698349017e2022c0cbf6cd8b67b5b61e0b85a52af6c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEEC31850125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa62155753b163d699c548d1f4f2d6ea849f8efdb5353dec0ced459c81c3eb7. 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/PLE072214603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8a728d1e414c1ecebe59e854576f542ea7ceede0114c1e384747b5f197f7f3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEBE72400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8a728d1e414c1ecebe59e854576f542ea7ceede0114c1e384747b5f197f7f3. 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/DEBE72400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8a728d1e414c1ecebe59e854576f542ea7ceede0114c1e384747b5f197f7f3. 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/DEBE72400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8a728d1e414c1ecebe59e854576f542ea7ceede0114c1e384747b5f197f7f3. 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/DEBE72400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71f12d336fe82e9b8e37aadef987dc39daef17dc2bea085b905f70623bd5b68. 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/DEBE72400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a2a5bdc19126f5c9bdd21451e8de4e0b452a8d6b1d133dfada704b2579f715. 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/GBPWR1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d9185595b13445fd1cb4fc7baae7a0e6b2e2965d18013f6c172ac77bce17ca. 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/GBPWR1600591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765c08006f403f68dca012539c313ddcbea139e60449098fe0c510412a0e0f3a. 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/GBPWR1600521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93861706fc21192c48690ad4662e56a28008aa8b0bf39f23eb255325e0758eab. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBPWR1600566.
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