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 0x9f7b844125a1a281f1c45065f2344a2980735fefe9c24ebe2d0851615cb91b48. 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/14720bad-e4bc-42c7-bab3-6cfc2523caf7.json and https://artists.proofprofile.net/proofs/artist/14720bad-e4bc-42c7-bab3-6cfc2523caf7.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 0x32a953d2b09b3bc7f5b4cafe95e9d91ba98d600376e4c57dfe03ead509a2b33f. 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/FIWMA2300551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b09a64a211e9548307db2b2c297e9be0ba837bd8832abf3670d7390c69c5349. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHNA2373063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06c9cf0291e9df275d4085b124e8503da21eede40347b17e81fe0c9ca5c30cc. 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/QZHNA2373064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1125b84ffe156cb334af52d32c4b1e13b3f9b384efe3339d4fd1afdf29558a. 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/QZHNA2373065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c61710b35265e2669b2fc82a94c498be5375ec39637e661cb7d5feaf7da2d13. 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/QZHNA2373066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101dba4c9e27a31e5d8e352c194204d2714aa6f542be3354dc7d4636103fbadc. 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/QZHNA2373067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e313993bda271e470fd8e1081c7a361e5880304fecf7fafa92d411c745827bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTAT2230368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc518d15c36d9239d6ebdc531271cae729e889bb4969d6389412e56ebe8ec93e. 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/QZES72366888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05899e99ec24fa7f15c8edf1665bf6c5f0d72371bd3a4b48918fd9d8003de488. 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/QZFYZ2355832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc354599ebfa02353313774af00bc3f4fde5e376aad6ef15be2f5f70e156cc524. 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/GBAAP2400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8a014dc61727171ea6907f20d15e7845578f444c9a684e86dc05fd2c1a2d5c. 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/GBAAP2400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de403a6617181ec4fd0bc5e807fd3aedf3e28ed60768c644de3d80b88206658. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBLVL1900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefbe615db56df7696fd7585fd23827cc31e61c52f6d990ffb29b81d0bfc36fe. 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/GBAAP2400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8a014dc61727171ea6907f20d15e7845578f444c9a684e86dc05fd2c1a2d5c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAAP2400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8a014dc61727171ea6907f20d15e7845578f444c9a684e86dc05fd2c1a2d5c. 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/GBAAP2400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de403a6617181ec4fd0bc5e807fd3aedf3e28ed60768c644de3d80b88206658. 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/GBLVL1900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de403a6617181ec4fd0bc5e807fd3aedf3e28ed60768c644de3d80b88206658. 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/GBLVL1900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8fe7b6738f4e4ce4b37ab5b7969ed2320b5597ce76db9212631b6fb32547b0. 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/GBLVL1900356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e84dc72558cf2dfd9f235c1807aa38db1d9c698e7854d683e9770b991107e35. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FI11O2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba986f83017e714d04be253f198662700e7235f9a276b218fa438314a7c85e6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FI11O2000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c050fd5ea699d9204e431fce83824100dc322e839e8fa18019b042a969da23. 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/FI1102000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddff9cac66d381f0461d8179edd4851d3cd1bf2463ad2ee3acc39ba355857fa. 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/FI11O2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba986f83017e714d04be253f198662700e7235f9a276b218fa438314a7c85e6. 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/FI11O2000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c050fd5ea699d9204e431fce83824100dc322e839e8fa18019b042a969da23. 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/FI1102000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e84dc72558cf2dfd9f235c1807aa38db1d9c698e7854d683e9770b991107e35. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FI11O2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111fbad5fa8ea8ac84338d7bb81f8e6bdb3bfa2bd5bbc6ee265d01b348a2bb5d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIWMA2400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c3601467ebc00e507d2133084d074df4cd2d213efca8a6db4dfb772e4e73e9. 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/FIWMA2400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa264808ee672706aa6ded36fe51d2a17e4df432f7b38bcd10630dca2ee50beaf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FIWMA2400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a09c461ce91ce8efb8f6b8acdb0531789cc3beb7b096ed0e1aacfe6f06d845f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FIWMA2400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc31f526d2e371ce01592fa05ae3764326894fb4f83b5adc2f3567159c9c989. 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/FIWMA2400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a953d2b09b3bc7f5b4cafe95e9d91ba98d600376e4c57dfe03ead509a2b33f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FIWMA2300551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4b690a1d2aa57220e6e5500b06e2026ce1230fb002d4338572e0988a64aece. 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/FIWMA2400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa081e6a237b666f1f1f2e28b0cb06cae7158fd97e5c8eea9739428dccae12993. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIWMA2400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293016e9f12933118875dfbd88291f58ac966ea011265b9b4314dc7f468b9d71. 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/FIWMA2200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616ec987d08a7e03ace9075b4655bc6229700ef78a6c4712e6fde4cff36de0e6. 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/FIWMA2400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee269276389525b59d42ebdce7576fd8a1368368b1315daddb249a0f14a86d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FIWMA2300464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a369bb50c8aa32391ef0525ce772744dfc4b20593417d57473365484192ab2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FIWMA2400178.