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 0x164c5d7cffff6593d3a08933e6ed9e9fd5b2e014a781de895a37aef57a9655e5. 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/fce664cf-fa34-4274-aa03-39c14b0ebb4e.json and https://artists.proofprofile.net/proofs/artist/fce664cf-fa34-4274-aa03-39c14b0ebb4e.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 0x615b66a17cdbeda2b1f4b1e590ce620803aaa9df760f15ba48f4073f49c0f534. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USCGH1267809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adf31e37cdec296560cbfdd0fbc882072f2c33556112242b1961d4f3fb912ce. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USCGH1267811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c0ad96ceb650f28447a7fd2b478bc06cc419c28439cd9e1b454de6a9dddade. 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/USCGH1267812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a2099768d8b1f10d4314cc867558fd007c663db09642bd6b5748d1dbc80063. 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/USCGH1267813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb7feaba3b7955491f92ac988c4ac62b3fcfc781c73eb9e499c832af4eea90b. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:53:37Z), 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/USCGH1267817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16292b1df5572a40233e0083c02a97eeb0a523c6fbfe331ee23897ba772b4fe7. 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/USCGH1267819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87442aad80b2a72dc0e440637e574bb1e1e4511f153ab2a0906de98425c5abe. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGH1267820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc077b84d8013f385b93cb9a00b7bf440c3fc6448230c21f4d1e9b5670e594705. 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/USCGH1267821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67917dc6663a8629dc3c054a3e61a303f303002d10c8b27e32d697b614d210b. 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/USCGH1267822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3aa2bbac1c56adae911233e929bf2565cbe939ed90b86ffac3452f25b20f3b. 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/USCGH1267823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb546f830da410b80ad14f23f7308092a8475a39a1b6cd8f2eb77ce8dbd4d682. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:04:25Z), 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/QMAAK1505471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56252cf5ef5a2335563cf25a383dd2dd58de67cd1862ae46f045c39b2dc38f62. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QMAAK1505472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f53f40a3c145da79e70838e46866a4fa39532c1bd840f16c3c8a2f5ca15d3c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QMAAK1505473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767b63109f4fcae3628c96bf3fbf0ecb33154daa2b6fac2374b93e6f98596a94. 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/QMAAK1505474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec550fc68c86a4775ae85c23bb9d18570780e8badfbc2da802cc98975673fbb. 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/QMAAK1505475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc951ff9c769d67da88ec593a7f10a8b65cd73c741fcd40c50f99301008f6c043. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:01:17Z), 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/QMAAK1505476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090679212f7df67187f479ab4d8f73747ccb7ad3a90917989f6e292d59a68ed4. 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/QMAAK1505477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f090c4c974a9e48b3e2a8ab47a4f458492411c8f66761a3b522b63989a5883d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:58:45Z), 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/QMAAK1505479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153e9169206dd6d4b968b6ef3924b6761eaed855115ac60bc2eee871798acc86. 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/QMAAK1505481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1549fa86679c0bb267128080a4b7282090c5f645a06050f5dbbe10c1684f01ec. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/QMAAK1505482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709ff743702ad447c9cd471d8202b728ffb7b1f73354e25984da84601df84c91. 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/QMAAK1505484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4922d846d5a514add4f2b9eecb226a0421da891584df8475e6481979f977d0df. 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/USDY41756621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e1f58ebea4f4ed65b6ee978b8ecfcb3e22675bc3b0c294498195ff49998d14. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USDY41756627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47223a96713888b97c79e9d292eb2ab18a5be06149dd63718b47aea1af2a4b0b. 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/USCGJ2409725.