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 0xb2ccd076ff22840b3cba73182460b218f05bd15b5dfc1d50f6b4f9b33199e224. 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/c0436a4f-9308-43d1-8ebb-c37ab46b41b2.json and https://artists.proofprofile.net/proofs/artist/c0436a4f-9308-43d1-8ebb-c37ab46b41b2.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 0xe17c537b13cf0c1db9c8a585b5298da89e9b0ea4fdcf5c563893122dda61d206. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRP3B1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f761e143cc1e7ba1ac11b363a5fd956eb2db319d4cdb18be0b60be2f50d541. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FRP3B1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd020e2a576f3dfa39085a9ebca6f7619055d4d46639aa0f4a0769430bfb732. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FRP3B1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7162151db67fa8d15602ac94ef157bd5cb2fe5484e5ddb914c8fa70e5d03ff13. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FRP3B1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0117ae34df11cbbd79ee4c7fa2016e2058f15e4a53fbc227dc2a888f2092884b. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:59:09Z), 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/FRP3B1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc6544d1c647a9f5cc748380900c1e63b9e2c4e7872cd745cd6bf67f0e7ff33. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FRPJ71800290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64787f625775e5b6327034ebf1db86a9b8b28f289272426bbe551ffc27a1642. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/FRPJ71800300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb6f541009118f77563de0c47ff2d17192f1f7f9733147a7ebcf596700adc5b. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FRPJ71800310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006c8a4e9fd4a97cdfee794b8dd6b0d70fd3244f9d5dcfbc6642ab7af9a91c73. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:49:50Z), 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/TCAGB2272718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc667ff4cee4d7bf1c13eaae047fc3e1b17eaeb0cb0ef0a025865022417b83f21. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/FR9W12232509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183099a59ce584b8b75425068efdd0686c0ff9275e1395766269810ea364bb01. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:30:52Z), 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/FR9W12237865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc076aba443a1c90ed2811be857e5a69640bb1e53f1ad6f6d755a52b924d702be. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FR9W12237863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3eddd3bb30dca1daa63840165f3c958566f660fe792553d919bef616040348. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/FR9W12333543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287cdbcfd6d0d40c4f7396fcd7903d75c2c519d105f27b23f977736a22486e00. 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/FR9W12333542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe84ca443f14fc4db6102055b9338316ecd36329577b83b4379cffcad8d1aca. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FR9W12333541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80af8f464ddb55fb0756ea75012f3bf104bf18c57f61ec11c3a99cd7ccb86f9. 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/FR9W12237864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7d3f2e7d4fc91636ae5e9cdd7f11e3bdbaeb438d8ad1f1367ea340af2b5742. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR9W12506987.
A la poursuite du rougail saucisses ( Original Soundtrack )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a12509c2d2743fbe0cd9027e7a4dcdfb451d484873a7f1f972a42911b5ae7f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:37:22Z), 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/FR9W12542000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474268aed2928bb449882f80812df2783ba0017ec94e776a386424cef0e4d03d. 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/FR9W12542002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4361c850ba1674618e1e3653158e6662ccde4ceee20bc953b27143af984ab193. 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/FR9W12542006.
Digital Kabar (Electronic Maloya from La Réunion Since 1980)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fbdadb69cb64e206582f7d924b0fbf57df2ff83a80889f2c7a5cd140825420. 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/FRIDO1811659.
Le plan (feat. Aldebert, Leopoldine HH., Maya Kamaty, Les p'tits Museau, Dorothée Pousséo & François Morel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddba6b4ba902c1b1667fd4e22c9d4426b0be654e08b9e83637f50398b9fd35ec. 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/FR9W12438700.