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 0x55614cfd9124ef6507064f14fb54e55cef7bff9085aa5b9a8c2e30661f058688. 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/43e6b60d-6866-4b5b-ae12-3b5bd7a41df9.json and https://artists.proofprofile.net/proofs/artist/43e6b60d-6866-4b5b-ae12-3b5bd7a41df9.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 0xdfcb3d31257182545ce58cb453b82c69b764ef1c10ad24eb239704c5074dbbd9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:49:36Z), 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/ARBJ62300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587bc1068427d920e30002bf5deea244f1ff2f809fbd0516c05bd28af99219ac. 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/ARBJ62300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8c05b4b092a5d4d12272c351f41fb3ad745c237ac5d124054a1e6c82531fe6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARBJ62300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2365c596b9769aa79989ac9fc0dd0df473cee630ffe120561fd2ad3822967968. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:43:18Z), 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/ARBJ62300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee320d6f30f6e6c7a585de9f7e5ddae31edcba143071cfa4bdd04392822633a2. 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/ARBJ62300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90916eab5eee9ceb1bbb46429d64a4f49412a08cba2f2c0e29ba6fec7ff64455. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/ARBJ62300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58cca3cc946272aa79e86734d1379eaf635416c9a57ec65c60feca05998a922. 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/ARBJ62300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2b3852e9d883defc102160600b6f7467752b5c294cd1de691b9d6a216b325a. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/ARBJ62300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702692dae6ba88580e55ee7c188b174733f3290e37b840854d4f4b70d6030819. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/ARBJ62300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9a6886230398d1851161f1fecf03768f96d830726a56ee0b65caa0b71d6542. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:33:41Z), 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/ARBJ62300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1d7952569876303cbf1f93956af43276938b0a4491f25be23c9afaee33c3e6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:55:19Z), 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/ARBJ62300094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51578d61514272e2c6ec8d766ae3ad81aa0bba7e84fc43d7b3ad3012fef3306. 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/ARBJ62300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f2e6f493ff4d8d73b310d2db40909d95c8e851ac2f66520e350403efb55ae5. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:34:10Z), 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/ARBJ62300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3c4fc7625f69a1065c58414d1d294498c9954d2c686086a6c4215507b19fa6. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ARBJ62300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9186b925daf8283ab58cdbdbe4cacd0d6b92c6f18bde141d6a23fc89c1d3301a. 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/ARBJ62300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e6fc0ed2b66adc98c9ea414e4cf7199e50ac95a16dfe1c53783c04edc6b8b8. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:02:30Z), 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/ARBJ62300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fadfdcce5b8d09612d86aac9e8a9c1a69696e585d3added412df1b837a3b25. 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/ARBJ62300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871827c1aea03c6165e29980a13a19667629fb39cd219808549053f5b555f8d0. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/ARBJ62300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ea82ee576c41d88a3c8cdd01bfdd8360338a6f8f602536298ae681ab0ac28c. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ARBJ62300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049ba45eca998ebb11f52b912df9eaa0a6fba4708483d868f1724fa5f8ef0e80. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/ARBJ62300091.