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 0xffb981433ba95af3e9becfd3d6e9a5b79f05cdd6860f68e88349ec5e80b075eb. 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/54b7eaa9-981b-4ec7-8d1a-cf65bb057653.json and https://artists.proofprofile.net/proofs/artist/54b7eaa9-981b-4ec7-8d1a-cf65bb057653.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 0xc5dfc809e1de25a19329759d7fc9c91af6f1c4ff438720a1124401556b67041f. 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/CAE041400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df4266200cb77f5d31f76800407c585c59aab173bc3dd52c7c664e500635f55. 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/CAE041400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f074bba7927ef575cbeab2186d84dcf0b920d3f0a8e6438b1334fd13aef1f24. 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/CAT501057103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971ef2e5c07a44cb686e9f8cf107593dd2dba423fbdd30fffc9edff4a153cc9e. 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/CAT501057101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfd2f2c2205684b0064244c01a09d481090e3923bc7b01d491c9dc9ece4aa94. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CAT501057109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29696cadee4981af26877b41aa3add9e0e6ca5de8ab13f7aa746bc2136a1cd84. 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/CAT500754701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e32e812a08fd67f40b08b8b29fdd7355e48332339348fcffe0ce3befebae428. 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/CAT500754702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb05d8960c3cd3dd4a78e0da2b710af2b39a1338fadc704bbe533f526446fd3a. 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/CAT500754703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2660b8122785b984e2b65cd3f23be747be2ca967c6a8c2342368b689a7a79353. 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/CAT500754710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0e09d0b4101f0ad3a115806e5c52706c67e0f7f68587c791dbedb93075f7c5. 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/DGA062411349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff7df0d66eda09e3cac642a69c39f37091fb5269cae855ceed796ebb5a0ddf5. 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/CAF662400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc0079c464b578d989f97435ef791db2d590369db075a4d709ee13014c82120. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/CAF662301075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e47204abf76edb5396ceaf29a9c5581a7f9a62344cca0c42db617d0a87a599. 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/CAF662000090.
Électron libre (vue par Jérôme Minière) [Remix]
Plus rien à faire (vue par Valaire) [Remix]
Phénix (vue par Misstress Barbara) [Remix]
Météore (vue par aRTIST oF tHE yEAR) [Remix]
Je pense à toi (vue par Jean-Phi Goncalves) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdccd743d008e9558a8b25e5fd215d7ce22d5c4f457512fa1bba613f2ac4a04d. 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/CAD940981802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c53afe49b3f77667b31d80ef4cf50e7ff1f0ffaff6afe2a18d0af20668482dd. 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/CAD940981803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704ce643bfad952457fcd232ceb11f582bb145f30e08b462493fece72962d955. 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/CAD940981804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc026face97dd6172b84e2f0af2a66a0a10dc1087291f134cc96d917c49b6efc6. 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/CAD940981806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ad08b02bbcf3329232d378d1d41ab4a6b9ed761ceea6e18194a2a29eb8ac4a. 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/CAD940981808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fd31539262f70263d7d35336c3bc24e96ae9fb3632c6137f449eafaf40a881. 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/CAD940981809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8968d301cff1bd81215b5c0024381813c01720378dd48852927834063aaa0c. 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/CAD940981818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15b576486cc905496f5246797d2b0165c6392b9341b9bccaa26f354d5d33300. 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/CAD940981812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bad930c5b6c921aa57900f287bc803e844f2d52a8192d3c72ba5084b97c23e. 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/CAD940981805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fa301ff467a98f7db6ade37a4bcc562a9f8dceeddba809d27275e59c88bf5c. 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/CAD940981810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a11b99e06c20050f72e6b50ca7f6119de1df86037fe216880cc174396111876. 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/CAD940981813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d1e090234677d80f3e3daf227c165cb9958dd5b16760b77b1498b2cb55deda. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/CAD940981814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6438c6d5b6bb1f56a68852ecc06b137cdaeca328a140d7dabe9e64b594ca1525. 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/CAD940981815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd6ed12e9d6f757d605774b6f576c32478ace2e177017aa6735ac77aa1a56f9. 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/CAD940981807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f8e93a718e9dda45e11416d04442bbd592b5c71c5091a70d7959f0709b8d4a. 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/CAD940981816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22faa052ea9afeaf00c4085d099c77bb9fe875af1db4536643bb14ac478bc9e. 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/CAD940981817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3d1968a65f76ee78c31ad16a2a2c30766112cf261b9caa230952f2ab671cb9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:08:49Z), 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/CAF662301128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff7df0d66eda09e3cac642a69c39f37091fb5269cae855ceed796ebb5a0ddf5. 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/CAF662400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c432a2d75e9062bf9401c85696c9cbd2cdebddad2dd984342d48b9fbd1c5079. 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/CAF662301129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dd31832658c856164ff8724ce79ed66f045e1f70a53a589edc7ae2a5eb8db0. 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/CAF662301131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be264d8d1ebd56ff9a6e0307f33b66f26834c9d47370870a873a39ff098bcdb. 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/CBE042400090.