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 0xbe8f91296fdf012cbaa481bde189a84e21fd96392b9590171815d8ef1b41ccd2. 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/ce7ec058-15f3-4c69-97ba-7a3894d5c037.json and https://artists.proofprofile.net/proofs/artist/ce7ec058-15f3-4c69-97ba-7a3894d5c037.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 0x1b054ee728003bfa58cf82423982ed48ed17261d3bc772ab1ed4165540a2bc3a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USTC80925282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc236223587386810192fd4415931b09388fd9ca9fbb47bfc38a8d58e3e01377. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USTC80980684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47248f1590a68ecf1311fd417f2f0d2402b90feac22c2cdc0f9efe4c88d2318. 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/TCAAT1072677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec433abc020ce79dd8556c613bf8454518ce9cb3c1aa5bc2a51197461019a672. 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/TCAAT1072678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d6686f17d2adb8866c4d22e70a6920cf644f51e54ead7eb496db748ce5e2c9. 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/TCAAS1047995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9938809f51514fdc43ea85bacf8a850d34d8fe67e4e94d26911d90e34314a50b. 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/TCABS1383421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1d8c9c5ae3bbe9d4b08b87806179792967377c8cda9f790055c4060a04ea82. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/TCABS1383422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f048dedce06eab495a0d283aeee687d3f93cd9b2fb3dfd63519b0eb797c611. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/TCABS1383424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a1df9c4f9ceb0378261e3207cfdc945ec76c7ee226753265b6be5ef2168ea3. 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/TCABZ1408790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601f5ba69d5408e9bdad493b43acfa8f058da936cbd6455db48ea2bcb90c3254. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QM4TX1565441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fd3911e185471d70c06b82828399e8b3d31d0dd462dbffee68defd17cbb799. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM4TX1565443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f17d075722899659b6873d524e4f463a854d8ef74be279297b696a81fb6920b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR96X2233352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4327c42af093a9714b01b3c44c6899a7da2f0633dc909f4a7fa7082d22a3948. 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/FRX282220538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e185a664f415fa5954119090fc21386d66bef2ca579348bdf398ede1a5ccf5. 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/DGA062213706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8c2d73e5a2adcc6f0516de4fb4a3a95f69818c74faa09f22ce28e268354eab. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/FR59R2417578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc749ed23d0d9bfffef8ccfee3be2920e920e79cf96697b697c37f84b6c2b073f. 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/DGA0L2403037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8284f6072c07fe61338d5653633cea2fed54ff8285549e7fba7b1f83b8626488. 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/FRX282500498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311a9db3f064a96ae39e0db8897a52a4c16421bed1883cb5e3cfadaa69064178. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DGA052570018.