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 0x0a5c9d1eee49f054639eb48d8514ec2cc572ce244c91e43753d684146b2dbb79. 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/306fb194-0b4e-402e-b67b-745bd5b0bc97.json and https://artists.proofprofile.net/proofs/artist/306fb194-0b4e-402e-b67b-745bd5b0bc97.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 0x4fd578bd29c604600b32ceda836f8ed57e366e96bdb4299fbd59ca75d457dace. 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/FR59R1896794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f1daf62551f182d0813271c251bccb324677013cbe0466b46b13d46917d4f5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR59R1910946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f1daf62551f182d0813271c251bccb324677013cbe0466b46b13d46917d4f5. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:48:44Z), 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/FR59R1910946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3870f63e164d32ef1678af6f53569682584b76e23842267071c692e72acb14. 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/FRP621705690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8847b472a02e542052d7c1c89a0fcfda4585561f74efac82cba54b1b1cbce33. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:44:25Z), 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/FRX201971077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe32201758d2e8be843d95f140ee0161d654537d8ff4b47f70f24442a9511d0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX452059609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e2e06d5944db7f8397ea1657e71ef15cb2d6eacca3f516d6ce7805c930849a. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/FRX452059610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e05d4ea64439c76e6ab75dcf234b7976367759c9953111e9ecdb4ed8316cb81. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:45:28Z), 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/FRX452059611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426e5ea55c2d57bfde3654bde332f147d2705f3e81f524e5188c8ee32f4e89fe. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/FR10S2141777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b579b82b03740fd0d4e405c87b5f9d053ad99d8c5f1b1194cb77014967802d1. 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/FR10S2141747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492219b6c3150dce4e6266d6a344b7d1e944a59d51a4d0fadda9e601e8dc7062. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR10S2152319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae940439cb27bd55be1bb91db3fa36391bd5fd56743b54557e3b6e6fe8964a0. 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/FRS182117201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b1569524b648759806e68717c5a4c18acb44ee65951f73c2fbe2e97ca63cc6. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:31:36Z), 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/FRX202208460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103d282e39c626e7a23419855cd9c865f7ec50c0849bfab6396fe55219c72bd5. 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/FRR642201723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35b3e7f99f7ca0b21eead745cd4a476745c3815d3b0b98bfc2d968c28b6942e. 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/FRR642302077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830da2716d74e6a8bc9a2980c2fea62d815a9b30f6fc3963e6dcd2dd73203db5. 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/FRR642400843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7064477b1c0714dfe46d0ff1b0f19a6b898b1a0f559f7586026d9ceb723473. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRR642500187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830da2716d74e6a8bc9a2980c2fea62d815a9b30f6fc3963e6dcd2dd73203db5. 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/FRR642400843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9e7086fe5c2d8cc4627f8f6f685a2adfc92ebb8a9584d97f07aeef83bbf23e. 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/FRR642500188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35b3e7f99f7ca0b21eead745cd4a476745c3815d3b0b98bfc2d968c28b6942e. 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/FRR642302077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a646de8700f3929acbaff20736bbb8ed0e9196d4c38be0929c00a1f34462b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:02:45Z), 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/FRR642500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7891f35c24de1e45d1349598a860224c07a790fc694a7984faca4ee32f773d6a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/FRR642500191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db0d8abce66a63f5a9eb31f47a4c0371806ab22e1fcad7d0e7b3a9adeccba27. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FRR642500192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e376386474b58fc160a66bf00cd5cfb2b5d8d9cf12b19ff585a1166894dba2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:42:11Z), 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/FRR642401529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35b3e7f99f7ca0b21eead745cd4a476745c3815d3b0b98bfc2d968c28b6942e. 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/FRR642302077.
Symphony of the Fugitive - Extended Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715f51589872ba682451540340b3c8e782caae304aadade592b6cff8e162d657. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRR642501082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d412ce8a4d27d3219405c53e7cf55ce47ebe48cfa1e801fb54b20358f010ef. 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/FRR642301763.