1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xc98136800fc30071b7dfef82067c4104a7bc959b43be650bb52fab67170ee0aa. 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/e82ffb17-8f55-474d-bdf8-60b8f72898dc.json and https://artists.proofprofile.net/proofs/artist/e82ffb17-8f55-474d-bdf8-60b8f72898dc.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x6945cbee2e487e9306460862b981c2c1a182285249cda986f9bd77d9dceaed70. 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/MYIR11300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ad934ba3591f41f232e9c31dd20d4b9bc5638116ecca741b98386482aea8c0. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/MYIR11300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b32fdf098dc9f7e5d44bb8d2e15487b3f4a652a43856d1a2a990dd491af957. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/MYIR11300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6128c5a26c4f5e856d6187a7afc17dc5cd0b80a8ac63371dc44c2358043580b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/MYIR11300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4699f778200e9142b463c8859e83f8d8fc402c94cb4fb170405570cdfa77fad3. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/MYIR11300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26763331f7788df859d5b8a1d0a2e231bcfc0a6ba71327120bef05aec5e34ce9. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:40Z), 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/MYIR11300106.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bf5bbe4100bfc8be56f041f475a279ac4be91f085c227ff6d81b55097067ec. 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/MYIR12000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6417c4cc8355a85327db47960fdc05773552d24e4ca960c1596f2bacaa916c82. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:31:07Z), 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/MYIR12000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176ecd0ec419d486202394bf65758b1a8881cd2e3fd4d9f6ece74337ed52b7df. 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/MYIR12000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63054077ac87f37f5b1a3985a99985524da157ae6994585fdb92e6c9496d8c7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MYIR12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3813a5b83b79dec283c9ec400afffd8c6e6c72d2732f80f99f5b31f40c52a48. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MYIR12000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fd9d50da77d4d90f91e1b0b7d6b2d491fceca6f8bea44a395eb011f4f700c5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MYIR12000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ebefaf3ed3072e3d1bf22972d336c12f6bfd6e3eaae1235e447a3f39367147. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:28:50Z), 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/MYIR12000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a8e9826f05642d98c91c8b791c245759374c879c3397cee3cfab1227312c95. 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/MYIR12000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc4a183b343f2ea735f3f4966582de374409c8cdf90d7a0560af0e73e0a1daf. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:24:05Z), 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/MYIR12000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3be6d50aed159e90f16383c296c7f2273c96395d69d60d0f310002d3d24125. 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/MYIR12000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87aa9c71ce84664f5605c2b1243d6a7c2fa36acd92ec11f5f9ad244e4ba981b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/MYIR12000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a040abba365e080f7cd6c508e5e8997a6cb8cc6d1d08161e3bee7f6443c472. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:51:31Z), 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/MYIR12000029.