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 0xb9b8c6428634fce73a02ee1c8db404124ef16bff43207f3445412814c689169e. 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/fc7c8333-9a83-40fc-a153-2c7a630cca7d.json and https://artists.proofprofile.net/proofs/artist/fc7c8333-9a83-40fc-a153-2c7a630cca7d.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 0x196b07ca31b09b12a5a2cee9e35dcf6d7bccbb4dda5e14e9bf389ed5f23d2879. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR8GV2200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5903b49c1ba4b672d7019ee8c5b42701ce2822ab28ab5bd1a61b8d9100c63f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR8GV2200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d91bd3ca2fedbdd27b80412f78a439d9cc81a99e09f0652caacb5ee611f4cb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR8GV2200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b3ccf0e543196104c22d001a1eff9beea5a8248daaf09634b41b696cd94c5b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FR6V81716303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07a57e91a22c0b6e06f3969ee4361e79462ef55f6638985ebddef42a04d1a02. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FR6V81716304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aed4f0d19be4dac0e81c53b10cd5d26364a51d4e437c376ab57934ce32e695. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/FR6V81716305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f1c3d8d8dfea6432ebdb23fd018a6cacbd04010685986047fd7c94e7e0367. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:39:25Z), 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/FR6V81716306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e195e16790365649f2cf3219282c3fb5aad4f6e0a4e867562168840d261452. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR6V81716308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85aa020ba718ecf300fc2d6cfe8e60d2e6faa19a5f192dcfbe37bc7ced8e3146. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR6V81716309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1093aa65eea4b5e46ab9624c018aaab0991826bed41afff8a279035408bf9a3c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR6V81716310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b5290dd104431097c9d40637e5240f7b6c3446a79911d64badf6e12a7192c6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR6V81716311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d50ac40efd21d6ec94d1bb7b417c153c3f04dadd5a05dd2d222fa39ff8b956d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR6V81716312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fde315c1459b7236a9017df9914c6dd58adefd11a73ba213e4b59b056d082a6. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:50:44Z), 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/FR6V81716313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9dd47a06bbb2b52b4ae17623d08b9ab7cc0e35b62f9664e8e00fca1af38dfa. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V81716314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fb3404fea63016abbc1b20acec0d79d353be60c51a70944149ad638aa2f845. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR0U91600260.
Jesuispasséchezso : Episode 1 / Marseille-Castellane
Jesuispasséchezso : Episode 3 / Graya x Ninho x GLK x Riane x Le S
Jesuispasséchezso : Episode 4 / Saint Denis 93
Jesuispasséchezso : Episode 5 / Police nationale
Jesuispasséchezso : Épisode 5 / Police nationale
Jesuispasséchezso : Episode 6 / 93 Empire
Jesuispasséchezso : Episode 8 / Fais le mouv
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78095db4106d4268883f18b54c9a99f24610e1914674a769b335c6d38895826b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FRPJW1601330.
Jesuispasséchezso : Episode 9 / Tireurs dans la ville
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e550f47112c6316d36be70e0494982c3f7fa1f584f5e36c5fddfa8123fa541. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/FRPJW1601420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f54a32bdae057f9a2101b42ca7367315add2599d9e4db9fa325b18a8c53284. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/FRPJW1600980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f2d7b0202da36f80a564bd93e50b286214cf9846baeac09248f75c69d3fc9f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9KQ2100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc587fd335c6603e091a5638577f66e2228930135e175e287e4ac86509ba21d1d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9KQ2100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df9dcdf38757f6a3b5a2956bf82ebd31362730d8ee1110da21e7aa17a0249f8. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FR9KQ2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc26a03d46171d82cb911bd5bbe71a5e9cf1ecac18c04df77eb6254f041cbd68. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FR9KQ2100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd959a9d28537f1ac0412571a716a27aed867923ab749aab113a388b7ab57fb5a. 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/FR0U91400505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ac4dd29fa53d2ecbd655b61403963923bcd607278b1c48b3de062b9bf127c4. 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/BEEO71800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5e70267ccfe03846877bb737b0c281cc01cb2b897d4780039f1f085491b7a4. 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/FR9W12213433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba253a9c1f04bc8048f5ec331a0a159b72d26a666240b1633b9d9eb42964f992. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:48:38Z), 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/FR9W12233437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba253a9c1f04bc8048f5ec331a0a159b72d26a666240b1633b9d9eb42964f992. 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/FR9W12233437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1cbe1a98e4042a7eee6dc64b7990d78a58689af88bc901d9baaf0ff198351d. 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/FR6P12100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1cbe1a98e4042a7eee6dc64b7990d78a58689af88bc901d9baaf0ff198351d. 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/FR6P12100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d9ae90426a0dc71e6d9cf3f15cb6439ad0e08f12929c48181f1ac34b3b9e41. 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/FR6V80475861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66608153c9cfcf34a33668995fa191e8c4a1519fb99263924241243285ab790. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/FR0U91400498.
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 0x45731a5da4bea04b16eeabed95cb563eb3cafcea016638b3fc62842c964283d5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR0U91400515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f90fa68f0a5f3c2860a50560a8a3af6d188e4f2a2f1b218e7c1ba58a9320b35. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FR0U91500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89ba19b85e5884b03049741952522416dad7ef3ca83cce51f4f47b71447ed25. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FR9KQ1800150.