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 0xdd4a678aa77ec33874228a40d9fe4548bfee82aac190bfd434cede186f343dee. 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/17974de4-18e3-4cc6-be7b-10a5818af7d2.json and https://artists.proofprofile.net/proofs/artist/17974de4-18e3-4cc6-be7b-10a5818af7d2.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 0x14a04aef5a118982b128d43f0f771dfdcf3f4f0583c7fc0b40c8e0efa91c3784. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BEEI51200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e043596fd451a264808812e44a2edb9ecaad04ad9dcd1da3c413f5b958d03d1. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BEEI51200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c452bfce4694c75b5fe2b60afaf379501ebef42a546fe6f98636358c7efd21f. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/BEEI51200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e56c944ae2484a7a74f0db88c2459102536af46fdff81be7f4f3c7b57f710f. 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/TCADY1892795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f69a19928d1508fd35100f749aaf82c99265757948dee6d84e55c610df134b. 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/BEEI51600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc518321eb40ae9a7fc8c5d76f337cfd3403e80e08ce6f170a69cb2e0158b15ae. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BEEI51600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb205cb175d84128b055205f1636f6102de4fb472a81a78f79af91999ad6e2dd0. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/BEEI51600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b866245bd6b2f49ad040f330e3312eeecd597a6371824f5f0cbc0c581ad8f1. 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/BEEI51600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280d2f867f5b7716a335de6364d225ffb03aea19370e5f9a1573740a278cdf26. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BEEI51600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dce52088dff202e91e9fde139ae18b6cebf71b50c95c51633f5354d82124398. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCADQ1812485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2180cbee79454fe38d6cdac9c71219e1951918da7a343b3eb5ec9a0458d80ff4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCADQ1812489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b161f92cb20f991eb9ce67f8816ffe30e0812c40174c964b0faba513c64b4b. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/TCADQ1812490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eee3d3d7d84cc02b1c3f285f4691d67a07fd78349dc35ad88bd3c262e4fc7bd. 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/TCAES2030884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7075d824366bae27dab7067f15368e1332bcab0712d8e3d86e6c2eaa04b8599. 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/TCAES2030896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414e6cedcaabdbd66fc0ece3f6327fbb2f2e2292bffabb61fdc6246e23b5f804. 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/TCAES2030897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ac5b766863e58855228bca4dd1e5fe304f1b3108559f7c9c4767a4f71c1dff. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:24:59Z), 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/TCAHE2301544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf35aaa0441cb64af2cc33cfa8bc11240f249dc4575b8e96ea5c6a33fb4024cd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAHE2301548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d578e7011f53a5c41a7f849fa562d48d73cc954b79327eec8c110287dc73e4f. 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/TCAHE2301566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2e74236bfe5de5646bf94c39cc5e172ef0ab669cc3b6325d7ed6e7b2f454be. 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/QT65X2506782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5eb448d7579200a581100d09183c277ff79150a49151338e58b07d4b0c0efed. 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/BEEI51600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab48c2dfd639fe9676e33f73f7218dbd76a10807b3ee887441664d989e4d7502. 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/BEEI51600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f69a19928d1508fd35100f749aaf82c99265757948dee6d84e55c610df134b. 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/BEEI51600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc518321eb40ae9a7fc8c5d76f337cfd3403e80e08ce6f170a69cb2e0158b15ae. 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/BEEI51600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb205cb175d84128b055205f1636f6102de4fb472a81a78f79af91999ad6e2dd0. 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/BEEI51600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabaeacaa15b7066d73b1116a7e78748c9a3f63f3f76caac5d9b73b02c56c8a17. 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/BEEI51600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e40a7e31937b8e045ced8b1784a23c00f19e8f9e866693a32080dcda70ba625. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEEI51600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7279c6c46ee90aa9d91e9cde23d93a1dc0cedfaeac67e8783c26303a7d66a674. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEEI51600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b866245bd6b2f49ad040f330e3312eeecd597a6371824f5f0cbc0c581ad8f1. 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/BEEI51600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280d2f867f5b7716a335de6364d225ffb03aea19370e5f9a1573740a278cdf26. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BEEI51600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca648cccb3238bcd48c752f18fbb11af7f3fc6baeac22e1bd4f3de60a3eb42f1. 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/BEEI51600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed862f4f9ab458af50bf6de852bce6803f210e414477fc4f5c26af7c4be94d06. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEEI51600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75db8d24419265246b01f93e0edacd4661dda0406de86222261e849c7ae32434. 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/FR9W12137408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88183fea0fb01a49050437e5715f51d1b19a36f3b29bbd5620e3e750a6c71e2. 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/BEEI51300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa763c96adebe07efd38732de15fff2b5c4753692ac4631bfe1f3111c0f12084d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6031500510.