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 0x7f5aacc47d1efe11e0721e1c2a9ccdfcbf90068c0f270d92806d0d70f5b8457a. 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/0f21488e-d383-4bec-b99f-9c5247e45c96.json and https://artists.proofprofile.net/proofs/artist/0f21488e-d383-4bec-b99f-9c5247e45c96.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 0x35a47338942bf6a4a0f95ec9fb35d30e7c9f070e5273a62eefed3ba9ecc08be5. 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/RUAGT2408168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e74e207fda7d4da260575387412f4a8944f371f2f47e98ec6312d165520c6b8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/RUA1D2467171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea286da11246d03a8b19f77d0ab5ff370ca60e234bc4b39e609eb6cb3d3d121. 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/RUA1D2426968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde9d348af704398f5565d539004e1ba9ab864d714ba773a9aa1819ea1c53b30. 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/RUAGT2347483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ae288844ed560a49753e5dcd62417288551cd02ef1ba342f4805acee5d24c8. 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/RUA1D2390173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe92eb98747d58ec974b6bd23df3c5c3ddd29868ba4d08d05fa0e3f78abe722b. 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/RUA1D2357507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99daaac4ac6bc15b27efd4f3b03096aa8ac9a988c914ed7069be12904543f9eb. 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/RUA1D2338067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e628cec2f46e9fcea85a1b8f93460ed5df3fd9673ebe56eba213a022e3a660. 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/FRX872266022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011dc191f78f96e6fd2fd17a6c72d1021aad676dd0ccb3b1e4c21ec4f9c0896b. 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/FRX282252378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2350c6d7fb99a3f363ead42d25a31de1673c2ea3b15458c27481716ca884dc8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRX202272320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77c7f4915be2ce3b04bb1e175b011f9d493518e4ae5ad96fd5efe466bebf867. 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/FR96X2226145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f39a0103c118b9637172542aa31e029bc70a08bb8c088c0de97cb4d7fab269. 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/FR2X42291857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1034fbc352a98123adc8f71a5da53691a1ab0799ebdc3020e334e6d3ea956fa. 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/FR2X42215560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa672710d58b30c8b4fc09adb6c993a8e8823d6100346a0a9a70de62d6e2d772d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR10S2277395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c158bb43676219b6a039d8c249f2ac6fcfec968b0951f2d46ea4c2d1e594b6a. 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/FR10S2238854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf918e2dde6b11638c241018210a8488807db5ab22f57c02cadb4423fad199e2b. 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/FRS182128094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb831c68ca5876545e0392127a0d641f14f7f890ba352f0a7e3b3cf8759ff4e. 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/FRX872161866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ec65309588f84639a208c6900d4def8b45bbb14a4d6ba35542f3a40ff9e4c7. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FRX762194993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde67d670e12e0033624b12a6f0307835a49ea7be7101fa173af03520a0bef896. 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/FRX452125397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba3840da0dc2fa73b86754e7844002dafa5b876653a937fabd01116a192634f. 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/FRX282127931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ed1f41d5a4afcd0285e996449c7da3e397fc061ae3b9a141e81f9f79e88680. 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/FR96X2101097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681a12b94f4dd0d3c29421b7366f17abe779870faa8f9bb7d7836288d0485ee8. 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/DGA072131849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc201406b0b62383a42a4cfd726a82e364bc52786e976515345d3494614bb22. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S2148861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423bf4f96db29930a6484d1aecb26bc5dee00448fe565d84c5cbde6f8cdc616f. 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/DGA052015239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61755c41fc543b766db22a91e6dd2468cb8f9b168db765bc13b1f7d0c2db7a23. 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/FR26V2003965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c482751f7f83cdd1d398db032684ddcac57015f2d2f5cb1cbc8df128df4230. 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/FRX282073582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fca16f9e799b3f3bb5f6ec5678e472f2931a2efe7166c5f940bfe8721d88b50. 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/FRX452095320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788e5cdc382916c4f7ec954cc7f53594dab17dcc7d8ca4d93d750f8d4b881269. 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/FRX281993244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef4ee9ca568f013b6afb83eb004b3cca5ff4e7dba61437ab25032bc4af54561. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX201902639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9486cdf3fec206fccfbcf0f02bb02425626bfab89f8a2dc0aa87fd5ceca029a. 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/FR59R1951891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c83742de1cf5a554e539718384a187d9eebc3868a26a0f61067ef91ae60c24. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX282240079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec65c9bc6f32d7f3c42b4ae529731f31d90e2565355d24c036ebe0cc61ad8b27. 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/FR96X2270495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8db27a99d6ff061f44452a21369734e94791974148f7f62204de04087c3c6f. 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/RUA1D2513906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15cd851b172a98e1daefcfbd2f27ac5171641f54a9f099787f8ab0d75393f09. 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/RUAH62421309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d8ef04d7f6067fe92f743b6fbfacc9e1a800435b2e893849079ac2890a760e. 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/DGA0R2417267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda7d68570c3f3abc4d0e2b89e6429f7b0f359cd60793fbafc3daea1eb6fdc49. 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/FRX762253073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1034fbc352a98123adc8f71a5da53691a1ab0799ebdc3020e334e6d3ea956fa. 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/FR2X42215560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa672710d58b30c8b4fc09adb6c993a8e8823d6100346a0a9a70de62d6e2d772d. 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/FR10S2277395.