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 0x00a5ea6d913a965636993464ecb39d3c6f3f27cb03ae4de7979b7fa4002c80b6. 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/4d931ca9-4152-42d2-845d-1447002960cb.json and https://artists.proofprofile.net/proofs/artist/4d931ca9-4152-42d2-845d-1447002960cb.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 0xa6a8b4c070565c62bfa8605e6778f6b85fa04e15043e7a35fb891a269e1a4b43. 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/BRRGE2300439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764b65421a802e45b6f3da45f87388beb786d1efeec118b68224b526589dab25. 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/BRRGE2300213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dddd2791d899939520e643374fe99a9bd520f030bb0fa24fd68758814dc3d33. 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/BRRGE2300441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6796363b3cba0b971ce1ebddae9e5094cdcdf439397b335b9a6e20a6a158dff. 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/BRRGE2300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d70085534aa57b1fbb83febaeba53e3ea9eacdaa826047b244388ca66af88a. 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/BRRGE2300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dfc8274ec61528c541d81a84eff6e48656f8c3f255ec8f8a3b81545274c4ae. 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/BRRGE2300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64bfc06cbc155f19ef5f46c56197ee0ac8b3ce93b88221669b68aa3c44142f3. 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/BRRGE2300447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67990880db6bfdc400974717d046abfd4f7f89b4ca734cc68e028ffdb907dff. 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/BRRGE2300445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe41e95dc0eefe62d8714ef65667ab965d27deb33cf5cc20ba9df4b2c3f8d9e0. 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/BRRGE2300449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3df800476be098568efd98c1c3276c8fc707f68ee59c245f3b204d8d6356166. 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/BRRGE2300451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc380aac8b855b8cf42250aa1422c44e832fb18ffbbd9a8f7c14da15628029881. 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/BRRGE2300215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2531aae70d3f1f9d1cdcf8aa65bf4dfd5adc8414c848adb450ca9f0225b96e8f. 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/BRRGE2300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f83ea3675f563b6ba860383a803bd2d916d74452193dd328a357935bfd982e. 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/BRRGE2300221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2081d4ec43e2e7250cdca2c00f85ca7fe31004cbb736cb9cf3392e54ed2a8d3. 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/BRRGE2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6f632c406916b477c6a8c66418516f593cf1bd34c0be5d87c6d89655a65305. 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/BRRGE2401366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd855769de53a6c416585539943e68712d8abb939f932f3e4bc42e7c484afdda6. 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/BRRGE2400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f14b4a1a772e1f5ee8f0b78fa17d5f7e292483be1f0d53e051bdd390e00e34. 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/BRRGE2400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba84fd07b6b7738dfadef7d8e36736f068e6636647e1360808b657b748a16134. 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/BRRGE2401368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eff425976481200abfc998c6edc5e240c4b63bf1d9b9053ac30d9bb17e990d. 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/BRRGE2400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4131af8e4f053d38fe776813f3b6cffc4757827895be41243a9e84655ede15. 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/BRRGE2400498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5dd583aa16686a437cc02946058c7412800bf2af2d674e056760e79a0d160a. 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/BRRGE2400504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee3c427051f0d1c8d0841a1102f87fd38d342a80005881670a638e1a015b6ab. 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/BRRGE2401370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439d812a64d55b12f4a544e4a1429b6f6588932365c18592801b390b3af81c41. 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/BRRGE2400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494332ce9ef7f197dda0c77b77a36b534a4f84c31475cbe71d2e853f7e0e61f0. 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/BRRGE2401372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c44f91ccc5d3b85e40438839bf31c17d4ee5ccbd24e1fac797a5e30175a653. 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/BRRGE2401374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3438324da05deb7eb61bceef364faf7b0cf35e18a4c3cbf4a273849158e678. 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/BRRGE2400500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8863cacd612279dc4b44c1cb0b4f5046b0c2eed6db576ba14c6e95a4ffb207c0. 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/BRRGE2401376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfe03aaf5922b3448404860591163295dbfb96e71381dbe9d3def2a82b3da93. 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/BRRGE2400606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caa8d1f509506db563bdfa58f231f2ce13fec143a961d0c76a9f3c5116674ab. 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/BRRGE2401378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf1295d4e5901be41b8ec19de99d7142187f314cfe30e20d5ef56f4971a8d18. 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/BRRGE2401380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fb914358d566edee18d09a9f86b4c29a30409e15915bd54b4df9fb08fffacb. 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/BRRGE2400506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29594226b31a9fa1f31319bb0225d5679546887d3bf3f29dcd20ff1535f6b516. 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/BRRGE2400211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a280971b6da4b42c8da167d44534aed0b477ff67ae3babcb2b8fce063c7bcda. 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/BRRGE2401382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26b6993a1e58034ad4ad9860f7e500e7588b9b46945f27b4e8e3cd00038ab9f. 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/BRRGE2401384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4501a1a63e1dd8f0d5cc3f3e84d109fcab9c8d582e8a83a23ed104a2c447266. 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/BRRGE2400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931c8ced2f233f95fe73a04217ba8db5a5eb3b36d6625954dd3d1e65ccd379d4. 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/BRRGE2400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3c007964bca6b2a1560ed07c213e3b9ee0a1f0ed6252a93d03b64a418293ff. 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/BRRGE2400608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5dd583aa16686a437cc02946058c7412800bf2af2d674e056760e79a0d160a. 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/BRRGE2400504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd75ec0a2424aba673336244e83608ddaa763ad80a56c741db0f6b70f729ebd3. 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/BRO3M1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69be001acf7163c14ca1b7e7c3e175e169ec8e32d865d85dcd8ea21a2a23ec15. 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/BRWRT1900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb038247c83851d1d154f07fe6f872255e9918c8affcd925112e85a8b4af63d22. 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/BR1841700042.