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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecc4ca77385f767d5ee96f9626505188e26849fc83866b06191c4d0e4b6324f. 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/1c6b46a8-61b7-4db9-b5ee-b43fd886ebf0.json and https://artists.proofprofile.net/proofs/artist/1c6b46a8-61b7-4db9-b5ee-b43fd886ebf0.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f4a1bf5bb296d1d19e0ffc26e73cd3cfca6088a53b86534c848302c3b17a56. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GX5MY2318261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a44d6f0b0826106ae324f20f402997cb140917ed1195f613700246c7c2a6f7. 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/GX5MY2313246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3275e90e5f0481c4635c705f93d2791a567bc27291e4d82639ebebcc698e6c20. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GX5MY2300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1ef22f47a62b2f1f73a17082557b94aa771ad024d0dcbf92986e42c45331ad. 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/GX5MY2303374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa119507bd127b6467b6254a64d368f90cb78f2147688881c13936f8bdc68fe87. 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/GX5MY2372027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd854d11ebbe6ce155df37d1f988607e7548cf242c4d521da63b5609cd6dd6745. 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/GX5MY2399138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6f31ff188f190ad8a25cedc099e1e52aa2e31adafeec84929693a1878729d7. 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/GX5MY2352057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae9a17d6b3c26499ad9f0d6d46725079c148c0002edca39d848cf7ff8c0a8ca. 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/GXBDS2397965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03641ef52ec593e79be65836586fa184d7d26223b9dcf24b258524056dc406f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GXBDS2346232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e20e952e2148a07b83e966da3fcd18830496323cdfe5e07a2f3aec9bcff5b5. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GXBDS2314732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfe5582b418e8a55b079c571b5baa987c402917cf61de9246fbefec2b045014. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GXBDS2340890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600b19d0b047e2c3676b96f10afbae66ca518522b0af050390fba9fd63bff103. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GXBDS2333535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa688e842852d3bced222734586ba9c8beeae94cddd66fcb5bae2500d0faa8a07. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GXBDS2358171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c074dbfa75469c923c153243d80a04b60157a6641fe644cb07a7afdd2ef5a7. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GXBDS2329226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5be846ccbe7c6f68bbab89a9212aef15d94842943a7111c7b393cf60517625. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GXBDS2353906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfae02afc93ec89a4aaad6f7e394824471e4e9391da5c35004fb4b6e53cf1138. 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/GXBDS2388045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cd43c44638974c29013d2cb98926760eb9f19c17b32f54e73f94adfb8aa0c0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GXBDS2338978.
i've got my love to keep me warm (sped up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf858a5ac291d243d39bebf9b76223b6538615ebde6136c1152046fc1bd0cf0df. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GX5MX2350890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32ed431f833e454f7bfc0834315765715bc1e00774c842df5fd5f010b171039. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GXBDS2319808.
dark red // only you, my girl, only you, babe (sped up)
dark red // only you, my girl, only you, babe - sped up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee843059fa1b6d9c06758358efaf7bffbf4ab2c9ea75a64ca56d28a03ec43220. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GXBDS2390450.
Dark Red // Only You, My Girl, Only You, Babe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3effa7c5051b9405d9652951104c8f36556bb1a333c87d5f608e126f2da55030. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GXBDS2324696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d4800b20ef0c4338ca22838e8741ae88b91db8491f5f4f2739dc33c75c4c18. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GXBDS2395151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91dddad8bfda2d4201a61da801d91330c41000ee1bd665f17a85f914ebce9bb. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GXBDS2371436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f86aca9e5587720bbe3bc87c11fe008d19a50dcb5abe6473b4207e68d9b562. 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/GX5MX2353213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cb0cfcfe2e552f9dc152be257458256ea3e42679e35fbf12689e10d7bf3d78. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GX5MX2392971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d77d57246945f9b2e8c0d70c2d8149ef17e65254eb645fb85e146518ea85793. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GXBDS2306434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930f097826232e3b256ca21e651a8fecad269cf802258c0f22b5f386b034b81d. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GXBDS2368126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a666f8e03bac35bb60908c6774ecdf0dc6156e97749957982e7e9745c359e0c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GXBDS2399586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871ba7a18f6dfa369d7e0ad70b6d66e2ffcaea40b6a2fbadf0d703dfab44036d. 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/GX5MX2314675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7816eae2ee78c5affc9c8ea249f875d85635714135147a3eaf98d87ab34972c8. 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/GX5MX2341325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7354f6230243f20608f2671a5cc72882e86e617765c9767b148c895950a0ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GX5MX2345313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f35661abe9bc0622c1762d191ba1971fcaa5dcf25287c8e1b4cb666a298758. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GX5MX2380164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f7bb62e356c1b9478f9b8d0829ed49dcca070e624cfaec350344900eaaca69. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GX5MX2359632.
around the world (la la la la la) [sped up]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1886eb46f17e4cdf2daadacf331fa875a96ef6baa81ba87720807e3fef585691. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GX5MX2351794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f61896cb7efc5d8c42b4b696ceea5ea89090f36d654f4d5e6ed1028561eb44. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GX5MX2336798.