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 0x3aff043d285e0e16392841fe3f511f93fa4d606ee6090349aeaed19dbdc47562. 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/db2ced05-2094-4697-9ed2-bee94f51c27d.json and https://artists.proofprofile.net/proofs/artist/db2ced05-2094-4697-9ed2-bee94f51c27d.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 0xb1ed8e16ab905e11451dde6c39e5cfadb031b58c6d713bb69d31f08c54115574. 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/JPZ921211024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7874f7fadc3a8963059f0d899297d71d13a475efbd6f5e799689729c5356a4e. 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/JPZ921610626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ba991e50032aecce4014e7db8a2848fe498a3e5a7d245527b84106bfd0570a. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/JPZ921804876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31a9b53554b5efb6b887e2de372e02bf3d814c5c74026e7ba94caa87862020f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPZ921804877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f99c178cc8594e2413890d3e69224a3e51930d56e163e24379b02b8afaa7254. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:21:45Z), 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/JPZ921713240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24c65352bd9dbd9789625ec36f66a7f5e2a419a157e20a465d114bffc03fe16. 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/JPPO02100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea2f8105f68dee5e3768f22342f5070959f1a236d1906c861ca5cf16385a754. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/JPPO02002050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cf6af85b31e95d5ce3989182b99b08828e8f2aaffcb8c070b0517b1cc5c4bc. 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/JPPO02202302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e4c0bc42b3665ea0a9befb91dcfcd5736e0954c5f3b670d51ecaa33e8042f4. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPPO02202308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f6f7b52101ee181e1267a05856a8a62263db5ca7d880f3d3f2328435476770. 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/JPL542500324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fc33b4f8213fa83bd638bef94b39c989a957b7ed878c13ffb0590368953343. 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/JPL542500325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1770e7102260813480366213ce4b485d706a15acce396c4ef8610256c4a3046e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:50:15Z), 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/JPL542500326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a82f401949de8ed051560f8570977cbfe5efb774d9c47a213bbc12769ea08b9. 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/JPL542500327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755ed9169023d2eb733b07dcf888b141b482b836abf8cfd007aa9c1f862b0707. 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/JPL542401354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1dcae5c7e99fa8cef1482ccfda303b7f4a675cc4b7a0c58cb7f27868e523aa. 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/JPL542500328.