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 0x4a89f44a7e87fe1bde18641336d8f206b2ed60f82546342b96fbb8f97b275835. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28be4299-57fb-4cb5-8534-596e7831039c.json and https://artists.proofprofile.net/proofs/artist/28be4299-57fb-4cb5-8534-596e7831039c.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 0x2f5fac4fd0bb315f3264b825b90be977b2295bd56f60a5ba4679cd17e1a16ab5. 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/SE3GD1200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0597c2b5e4d68560bab6f06d5cbac3c922d2462483ce0afadb6b135dc7b0ad. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SE3GD1200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5af38d406eb4b2c0fd7dc609e5ab0000a5d61b3f5ed40fd574b6157170b97f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SE3GD1200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa043d278dc588da98c3360004bbbf9473cdd064a805cb283d9a5ba4671b86029. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:04:58Z), 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/SE3GD1200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e76f54c880b10b9774125602d9d6dd18cca5b1b65449309cedd633a143cf8d. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/SE3GD1200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa99b087821dd806dbb43a54984277c8fa2cc0df99292bb78f55a82f589e7a7c. 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/SE3GD1200117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3e4d82671b4db0c63ff53d9ad9fa6ddde4eb8999fbdbeb1f4d7e1e293740c8. 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/SE3GD1200119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477a92715f257e40aa395b52f6b394589765e276dc359f2250b5474a9407ee9b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SE3GD1200202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4350d3fb4ed6b66c9a3da2e3f6a6e2675f2dd145edb38bc576a9b283869d7bf. 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/SE3GD1200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b74c795100124e51312f27d36d1518a5b3fa32b0221cdcc88fff38d376ff34. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/SE3GD1200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912cce6aaca79cd298d5c645be333ab5d39bad16e4ac100e344864cc7be77334. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:40:18Z), 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/SE3GD1200213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa807315014a583591b8dc4276601f1efd5726ecce04332c0444f25a7ae7d8d1. 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/SE3GD1200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22beb4c3cd1c6bdd04b63314d4c0f26a53c4c869c56b843067ec43cd8fa90083. 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/SE3GD1600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c59ffd426882b0ae629423aac5ac4391b4a573f8bad44614c891caad73f865e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:47:24Z), 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/SE3GD1900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe1ed1af5ac279b254ce5aac6266ba8a29684c9d7e95deb6db442747912a408. 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/SE36D2000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fb58423c7fe775e2a8f1dd536491b7730bae1fe028706fc0086e677c913c2a. 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/SE3GD2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3967b9746447f9bb00b2050058ae30651c29f40c1c994eeaf85cb4529185850b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/SE3GD2000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf11bd33ca13bf93f952fd244c6fb0a136daad455dcb4f53551495206ae39cba. 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/SE3GD2000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c0d6d480a45f4cc1a8b8d36adc491ede4d14212ffc4fd24bac70f243e75aae. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/SE3GD2000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433abb7d839e80b33c842af860732a634d27b2d9db5af8921adcab9f2f437c2d. 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/SE3GD2000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a8416af0eebb76683e379dfb3de76780bacfeb6d7948ce752d786354546c83. 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/SE3GD1200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1567570eb99eab700502bce3b8e9b4823bab5272b341cb75ed86931c245b877c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SE3GD2000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2283eddc77df6a2e960f6e4851572fc420f97d2def510d0ea8f99cdacaadb2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/SE3GD2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712ecdeac18d9b4b8ce48d3cf525a6832c30c3d522b5f2af65a7f5ab3e084b85. 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/SE3GD2400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6c32699593a6884f0ec8919da6158b995ce44046e6877e429b14b7a7824a2b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SE3GD2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f72caf4e840556cf9fcb8888163d8e4b3f56f0b0e11ab58421248bfdc376c0. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/SE3GD2400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d39fe3c5caf273a046113c5b7a9eb50bd7e6ea51da7ceb9a75912175a51d90. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/SE3GD2400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35576b091e6184d73308f32f220d21ece2d6b05715c0274ed854d31d64551869. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE3GD2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437fb38fe75f4c7d0b47bff00870b8ed26c65b20f33df7ecd8f3d48928511c5e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE3GD2000112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edaae19e9f4f3ae98bfa9396d1b5333d082dfd60ca771ef1c9c1ebbdfa1bfe1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SE3GD2400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9503c731196d3714086c1ca0e905d1f4d7ad67fd82e18c5ab190d6ee9ce0d7b4. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/SE3GD2400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7175a38438e8f510f9d21e21c7e03c4d77f576262f440d9697d38cc6eb0f68. 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/SE3GD2400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8764796d2b71be250ff45aff9638a018bab5326c6c87c19166c6966e998cd4af. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:56:17Z), 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/SE3GD2400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282eb2cf98481d71d182eca977038f263bc1b75fe9628442efd3be18d38d92f3. 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/SE3GD2400113.