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 0xe27d36f23942955684b33801370e7365dbd5c7af9d200af7880bf20a91fc4033. 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/b37ed11f-2ab1-4fd9-9cd6-8933873ab58a.json and https://artists.proofprofile.net/proofs/artist/b37ed11f-2ab1-4fd9-9cd6-8933873ab58a.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 0xb9f52cd85a6344e7815e1d89d600fccac4888174767011335bcb737bc647938f. 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/TCAEA1999586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e722a5d16b272c6228fac3aff4603c22e209c51c5f8216cec5ed0b6716f1ad. 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/GBSMU6822595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c46676f6bc28d6d2af714376c4599c6ac765122741421b2b455fb61ec88acc. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZHN91910725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbeae013ac5e63395a3e8bae4e2ba5a47414f8af55d9aa96ea77c8301ea2da5. 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/QZAKB1910613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03ec4acbf2a8cf322b0694c8d1e5cf23f27c2c2065d952ac498db0b5685d977. 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/QZAKB1910614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e05881a63f7a97191d63660814484afc9da9b2269630992c6b483546da1066. 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/QZAKB1910615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc463e6d6251ac05bbef749cce58e0f8a75d8cc31799006d3163f40ecf204fd9. 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/QZFZ22053066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83282c091fac2e5d9f8158af59f7a269fb5b5abfe4ab3f11fbb50bc050e76235. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN32086579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fa87bb2e1ff43a903d3e314620f489e332bae7a022237eadd0b090cab289ae. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM24S2007599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043e2c09ca8e46e2801448ba59413a7470440c7afc6a456c1b984d1587a9282a. 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/GBKQU2111643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89912b5b3e22a9e1f72919c0263c4524c0ecf45e6e7e61463067c1de9ba6683. 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/GBKQU2111644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718699407917e4a2fcacb174dd253c5599acda3d90ffec3011cdaf9e9f120f5b. 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/GBKQU2111645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d51af3a788ddb6fe282b3dc761393881ca91895f9c8c26f2e5235a24525db0. 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/GBKQU2111646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf485abcaf5902b026006559b1e17d8dc061f313e3a06268061681a7251cc8375. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2111647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ef70800e47ca5ac1a73c32908a11dfaab0eb4fc6635faedb94eb241170e4f4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2111648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0c3cdec642c6b991908126dcef944e9cdd55787bfbc6c34a88081de62f4332. 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/GBKQU2111649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6279739b4b4f04ee00e6e080ec067440b59f6e0baed5a286487c5fdced7d7f. 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/GBKQU2111650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96f688698943167ad4392bbf89d83f416912639ed48299c057b24e9287e21b8. 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/GBKQU2111651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4cdd0e7e3c00f0e2db92385cb9a9b428440eb8565da279b7f28f296a4693b0. 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/GBKQU2111652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4570a295f7993f44514ea5c6af88a9add31c06de4f2bca1ec34229ac1769bb41. 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/GBKQU2111653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71505ab17a44f32e810dc18592ea503f93a6f2057fc5c58e77b02440b198706e. 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/GBKQU2111654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb304fa1a8ef5eb7bdcfd762176e9418497eccee055ffd02dfb479ba0b0fba8d2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:39:03Z), 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/FR59R2140816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080c9f374f49a3deb7de57979ea3c12041f242164edb6c800ead6951ac3c2566. 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/FR59R2140817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21796d2ad657936097a0d8e3cd81017135daef7eceaca449e0ac66a0800436b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR59R2140818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899b71a7941ef2d3336726d1c7da1a07c35cf03923271007578598595b16e087. 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/FR59R2140819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23796026b87492dfe6210f4be848d7648a596c2622064a35bca53d71d89db05c. 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/FR59R2140820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f2d9160aad2b0631a27251aebaf880bb3d297890a83af4ac8bfb34c2560259. 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/FR59R2140821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89441f7b6899caa776649548d98d098089a064857498567033829665e3d451e9. 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/GBKQU2194960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1664cd1d54f8a96478b4055b18201d02bc5ea108eca16e5de796212a61e70144. 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/GBKQU2194961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf12a005cee696d6af6ad96b98b211747b4ba365ae13e2a12465c9861e1c3e94. 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/GBKQU2194962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6532da739903b2ba3a1d1bb69a3ddf4ae47ac1b4badf216761bf5ea10b39c217. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2194963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5ec71a07cec2734b29dbf4e32f8cf5e2c36a085715fe0c1331ccd7b11fa281. 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/GBKQU2194964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d17238a7ca89949733c35e58b33adf32c529c34dfd8088d7079c2ab357206e. 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/GBKQU2194965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8fa6f7c35a524092960aee05a845264adfde92e11b9ac0f9ede9506c0649d5. 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/GBKQU2194966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e28fd01b87e5c8bc1eb1b5bec99ca9f26743a2d681eb5f5ac175b64b0f8595. 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/GBKQU2194967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11aa84fa2ec2d538bf8b198dbd64dd8d1347234527133e08b86d50bea5ff2ee. 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/GBKQU2194968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca994bed6ae2488ce6b6aff1e859d61d392c3963690f1d8f5cc7df6f92d75b7. 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/GBKQU2194969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766c404e19c74548ebc6b7e59ebd6c6c7a77730be7b05b089291647bc6daecb3. 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/GBKQU2194970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2803d8e8b3116e4fffa63dc894d343b1ff572a2e7ea2da5d6122b52273ca86bb. 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/GBKQU2194971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ffa962f035655d2605fd3d2000ae6f5570028fb438d38c0dd5fed83d962b65. 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/GBKQU2194972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4323c71ff2f37a28d4fe22893d2a7e1021b316771f6386f898bcd19d814b77. 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/GBKQU2194973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6274e5ece5b8ee678b970ddaab6b93e6a5e94466367a0705aa590711642c843c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:27:13Z), 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/FRX762120084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df4232b685670ab045a41317b233e6f1e7aa2d28b80768efcdd53d3acdd523a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:40:33Z), 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/UKZGC2508663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5529792ba1bc630fa3b9c524fde5988c19edb8b15c0fbd63e8585cba80a1e72d. 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/GBKQU2237583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e86eeef6abab5129c7193c2f180b12772f698c6eeb0be9db7ca19b9ce7aa2b. 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/GBKQU2182847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378ddabeeb470396cc9712cc6cdfdcc80873a4037547f784a4efea7baf21d872. 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/UKZGC2406301.
Lofi Girl x Chess.com - Chill beats to play chess to
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c173e15838ce76a6740cdc30679a0333b42c887a4f8589afb4c9445731ec93. 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/UKZGC2309080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba7507fab6de95d08fb3b6a430a158e7dbfdaef2368fd10e3064124e9760fc1. 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/TCAEZ2059073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade359b9975bd6218b01d5771295ae1d18a1ec9aaad58034b4f7e022493bcec9. 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/GBLV62109056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13232de75ba9bb21ed3bd8954737007edb4a8ed28e64c82ae8e21a9a99aa97dd. 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/FR9Z62100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a96db4aa8775cb900793a73b6e2be1da310deaa9f4b692c570e8de0517aaee. 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/FR9Z62100246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7da346a1d394b54372735ec102d5e01530e8b4508e6c43ec18256f1e029b15c. 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/FR9Z62100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6b447d8bdd9e96b2fd692bef17cffff6718cd422cb7f8abf95d5e5514dc51e. 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/GBKQU2169268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c186f7eb22552a66aa78055656ef7262fccade9547a5d84b605ee62644b8c3b. 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/GBKQU2169269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892a16a48d88124e81b6e60514e84b61f73bce2349e4c7eed7c526c948c04df7. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZNWW2115041.
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 0xb35923ded317574c0f89846e32f7fc1856a3807cad6efde74dcc5245ad5604f7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZNWW2115042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11119b4916dbe09ce1933a84fa5420e470f4937744625930ceccd67d692a683c. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZNWW2115043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9318450e0345edcd0378a2eac57ef800c8e6e319afdea7626cd38ba56e0d961. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR9Z62100249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f009b4a643e24827c5f4d6b08a4183702a6f11c8ac0beb0fae883f3c754f94. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/FR9Z62100247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e7eb020de8ace429f5e08436cff23ce616a7a126cd48d1a20a5d73f99ef86b. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/FR9Z62100250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2866befb2a9a580a7aa319e1a66167fe5abbdba413e892af454601a49d205c2d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR9Z62100251.