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 0x186fa3e530ec9eb4c9de92711aa15742aacf949c9a9a52cf217b60c9a4b3954a. 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/5f8f1a44-664f-47fd-b3e4-2f0233783fb6.json and https://artists.proofprofile.net/proofs/artist/5f8f1a44-664f-47fd-b3e4-2f0233783fb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xa8e4f7003443ba22ca010274606074335c199b23b67d34fe78725f52014541ff. 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/GBMHG0600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae20d1b17783dd02dd91fa80c9c4500e070c4a892914c447f11c078b0abdae1. 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/GBMHG0600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03017dffcb560afa59e03857574a1b6360beecec85bcd1b7a3c817a7535a4362. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBMHG0600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874b7482174130a8a4d5d4cbb6db2dee6242dcb1904af6159e6fe88eff256980. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBMHG0600204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0dd7b502953f178a649b5ae1561d173914f9e3148e55ce406459e7e4262658. 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/GBMHG0600205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11523b8368ba29c007b5880d3b5622eae0fc49088833eda36c0a2895259d33d6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMHG0600206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd4b58ed90f01ee1d8e05d98269d09df2074b5db0aa0842b03a6e05628b1644. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBMHG0600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe452f9db02252f7b850b91387941aeaaea45774999348855470133749007e172. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBMHG0600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdf5d080e9af02f49acf554c1b0cde7c3b7693d03b1147120dd2f025f0f25f0. 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/GBMHG0600209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99f6ea6b1738eb3d517ffbb51136e6605038e1628e6f18ba8d016c92419afc3. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBMHG0600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304759b501634317f130c6323e8c3273c4e9ecd460eeddca98c988fc72218cfa. 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/GBMHG0601301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719decb9042f662cc229d1d7616cd77187db378900440d489eb6531bc2e578c0. 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/GBMHG0601302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea47b5d8f431f021300f6249e2ccb3d22552de741c9a3c956e3995866013d81a. 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/GBMHG0601303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc4f8aa606abd34323bc279cd37cae6e94ccc51d3ca8d006193ecefd4401737. 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/GBMHG0601304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6309a881bc101aa7843d082d95da72575e4082da4fbce6d9ef8a8da5b683575. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBMHG0601307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69f7f02c9fb4309b402bcd9bf1398f4296d87d9639de015182bb0b27dc9e567. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBMHG0601308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03438e1edddba4639ac4f1d1122c9ef6f8c541078d7d6cce83d9ff8a9c3417b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBMHG0601309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e908f59a643275cf3c9988c47912baca269cdb85efcccd4adc45ce2387a477c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBMHG0601310.