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 0x21e6d7ff21aae4dc7fc4c9f07ffa2518a415fedaa5be898777b72a3be17e853f. 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/1c38e6f5-a475-473c-b9ab-8fb611c491c8.json and https://artists.proofprofile.net/proofs/artist/1c38e6f5-a475-473c-b9ab-8fb611c491c8.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 0xee18ac2de2ad44196519b386cc7b4601f364bb64bdcd7e382c08f6038f57e674. 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/SEWLR1504201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f8a63229f03195e440c29da94a17bb76342c5242e03091020fb5cd21652bf4. 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/SEWLR1504212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3506f98a3a8b76efd27d94feed339ae3dce18c750f1bc0aa2b4d98d29a7e952a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:37:04Z), 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/SEWLR1604707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20667c2255b30b3f85864cc3b9acc3d469e1e4d26b6debfd47dc194b1a0b786. 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/SEWLR1604710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddf4dd9dafb893820ccccbdcb6960a7225a9742bdb183b21114e1e525bdc8d8. 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/GBMJG1808118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6b000c42d87a8c31419c3a16650e37213fe53b8cbbc55d88d4b20b5f33a53f. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:57:50Z), 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/GBMJG1918103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06a1c8aed310f4d9dc3264293792a0a8b5993a194b56da70a9d256bf3e77a56. 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/GBMJG1814568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fd6b69cdf23f9848c5f592cc646d61913ac7fc2adea18603d32ec3342dfed9. 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/GBMJG1918105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a5b0e82051ae72c632ab62d80cd061e2cbf6645cf3ee27bee5131917688732. 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/GBMJG2112746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc752f403102cb778a0cc8b6bebfb1bc34888bb7f179d119a409cbeba9bd07ea. 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/GBMJG2210121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed1c9f71ba5261a41fb9f5a056c5dec2f10930f095f8dd3ea1c548673a3b488. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:52:10Z), 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/GBMJG2226562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cebe126efa02987be0f9e65d01bceac972af4aeb1fc74499226f3f33da7d1ea. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/GBMJG2310438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f08f65a51d8f1d7ee2e17d32a6691185f901761731e0736b03927cb64801471. 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/GBMJG2332354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651d2f8314c1bd2ecfa66ffbd212e966d768d34d0a728540c3a28e78e8882813. 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/SE7NP2400004.