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 0x5e9f1c4c749f7b4699175516a271b3be681837a0977ca180c1e66625b8c28f8e. 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/3e6022db-dd21-4f7f-a6ef-7bc75347b439.json and https://artists.proofprofile.net/proofs/artist/3e6022db-dd21-4f7f-a6ef-7bc75347b439.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 0xdb9d9598ebfffe9174f05f90c1d5699a73010457bcabedcba4d944ce152bfd8a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DELJ81603821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39e9d82c129bc6ee5961a547f3b29132cc144b9daccf1a669285ea055fc1992. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:01:55Z), 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/DELJ81603823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30752ffefdfbbceacf11c7017ec265790e790105760198942e19d29d14a18110. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DEQ121744628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f1d3397e30e9f49e044117d54253ddd4440c1af4547a2fc982ed7bda288dbe. 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/DEQ121744631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb88ecbaa17700ca01963501a84d2dfdfa034de98fc1269e29d142bdeb4b6d0. 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/DEQ121744632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3388e0a57c23efc38aab8ca31f8d5ac49044975e18beabeccfb8ee5559d15cd. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEQ121744635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090d5d25238b12f3547d52926783447ec69795a700f18651be55d8dcca50aaeb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:19:50Z), 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/DEQ121744637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaf0bee9d929fc4eeeaf970584dc92da8f5556d69391905b0d936497301acf6. 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/DEQ121744638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185c5577b6d43944e63d69bdaaa4511bdde1cf1df3e6603bf4a0a6dcba18ecb4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEQ121744636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43a6deb05fc7ef7f99bef153c1807b9b5f294fb446f546912aabe8743914697. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DELJ81603822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e05ddffdb5ce3e95d1b6b21ecf25fec8a1a5902759718ddf8075c458d524f6. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DELJ81603826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c9129921b53243f5f314006bbf91097b86aec3901ad80bb12f8e2963dd7db4. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DELJ81603828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140c5de4a520d9e8fce0fc7fde37a6b31af3720ef5f6c8cfcec2c771323aa9db. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:24:21Z), 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/DEQ021802197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3e7c7d79a49f612f7063491769c503406be303d90217c4622037ac430fd3c6. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEQ021802193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37a81a45399289d2033702c2da73e882337172b706c7c87ae112d4ef6d8f8ed. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEQ021802194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5566fda5b17801976287b1136ad12d28bc244234097fc6e4e213222a66636c0. 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/DEQ022001964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260a29aeb4d0b779836ddee09bcac43051b53ca892f2dcbd2c28e283b1149407. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DEQ022001965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78a49572673cb588f460c4cb7a4b4f79536ad895b8cb2b634dbe16daee63072. 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/DEQ022001966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ba215ecb37a14aa6004d00eee237f7387d2e04b0a8b2eb2dfb8f5b27c728a4. 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/DEQ022001968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a3927f37ac0ed108ae720f14e11723527e89ac4567199500081e9156b85fd9. 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/DEQ022001967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9042f1f45ae3ac79faa2485748426084817256a97f1f433d2ae7edca0c241f1f. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEQ022001969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71435fe279933c4dead397fb049cfc055605d19c5ff3232912de0b1013e84974. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:19:15Z), 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/DEQ022001970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0215fdd14085cc7ef16d50d065063b38a3a06e6be6918a78d0047c8572b62a3. 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/DEQ022001972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22ccd04de04f24d24d07c515d272221fd6991596c74f22f88d06d499c199f4b. 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/DEQ022001973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6074c36c3aeb8b4ff6c9344dec8250b6c2f0c05c5fdfca7aa265c328c86a47. 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/DEQ022001976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5560f354103b8a4247d9b95fbfc8949d111bf377b0818619dabdcfbbc8382ce. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:28:17Z), 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/DEQ022110019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088ef72365f57f8ede29395fe000465cdec3e9fb5df0cee71c2a8fd237125218. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/DEQ022111409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79d5141dfa13e08c9d0e2aa28c42021f84057513f9cce3c7a1eeddc194015fa. 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/DEQ022111406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437de3c896aaa59abcd4ebe770efb09bd8f329d9badd26c107a47c71274d7a3d. 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/DEQ022111407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dec7d913e3674423fff58d2507bd7a79c2a8263abdc82a53f2e23f23be4fa02. 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/DEZC62346079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dc3b877b75c70cf3d66183dbcb8134270b4e5734cd4fab32d0016b2c3f4a2e. 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/DEZC62352988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78d659dfcdde11397b7a09e94728a5a250f6d8c1dc97d7dd59853b22ecb8991. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEZC62352979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78d659dfcdde11397b7a09e94728a5a250f6d8c1dc97d7dd59853b22ecb8991. 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/DEZC62352979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225bc563cb05d936b62f354b15c43bc11c30faf7f139541690129b3034003d89. 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/DEZC62352984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fd2ad21230db1ff8536598cca11f4b907f0e334bb6eb2c768827eee505863c. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/DEZC62352985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dc3b877b75c70cf3d66183dbcb8134270b4e5734cd4fab32d0016b2c3f4a2e. 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/DEZC62352988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0e71673a1c73d33a81fd47b6bd593260957bb9e92164db712109382f5f9bf3. 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/DGA0Q2406018.