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 0xc5f0dfdbe4de1825de5952da615cfb5279e61fda8a3462936380c99fb0d3b38d. 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/15fffa67-9248-4ff2-a6b4-6fa9dcc4f81b.json and https://artists.proofprofile.net/proofs/artist/15fffa67-9248-4ff2-a6b4-6fa9dcc4f81b.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 0xf281c9c0206c0f1a7e369a64e7dbed4e2d303b416588759b45ed86043a6767ab. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:12:29Z), 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/TCADK1707929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f04a8cc4b70abf45b1ffec2f4829027648c67c99f4ca398833b60a0ada42d1d. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T07:57:56Z), 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/FR7O51800730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d554298ab49a895b74eb92f459deb5e0eff8d3b24b9e7a807256d71ab41d98c. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/FR7O51900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2baf3da828845509f2d569ba0eb0e4696bb861e112aad347b30b2586226424e. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FR7O51900180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6c2058a41badd1d3d30499897ef6b38f2d01f789146ba1753ca64cfb2690e8. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:34:02Z), 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/FR7O51900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa839feee5c9c5c193abb33c6d459fcd8d62ba8da38795476a82b17b165033ba. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:18:21Z), 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/FR7O51900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad6d424fc8c9a93212cced57c9fef6f2e062a7b2bc28d58860ace9ee6085d51. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:11:22Z), 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/FR7051800260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d554298ab49a895b74eb92f459deb5e0eff8d3b24b9e7a807256d71ab41d98c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR7O51900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32f6ffb93199ea45ab970adff07291809635b74c8959d6f8736858cbf27854f. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:32:26Z), 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/FR7O51900540.
Boss #3 (Allo, ça dit quoi ?) [feat. Shotas]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cc38c92c1e11ecb95a9cbe422f5698d117e331cc349ebcfe823e47159549ee. 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/FR7O51900710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8313c416d52407a8e606624c37345356233dc0c7ee58ae721ba2094b6e973307. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR7O52000230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa903b543e5ba5f57e2409ff0e237a357194f6b541a881db330c9c742f28a2b32. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:57:16Z), 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/FR7O51900530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967c3b155f704d3bb0c900ad4f358c50930051154d0a33cf4498e45986137b28. 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/FR7O52100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86df596340dbf8cc33beb61fe71bdcca8577eedcbbb7fa177f62fbe2784a1b1e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR7O52100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce64a7783da584c85dbb914b8f5463353256341ee9ad4b63482b07ddc502306. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FR7O52100310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bbdf4bfe8a755662230c24fe2d3813a0a4795943bc227e265feedf9666e0f6. 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/FRPI32300266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d620762c090443c7d0d2416a782eed720c2b3cc7bfc6791b9ca28d40b69e6c. 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/FRPI32300508.
Dix-huit (feat. Sanchez, SD & Jackmaboy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ad3d463a6bf5ac87459bd12c7d83ec983224950b9c25ab78e63a5b98482f18. 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/FR9W12135288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fd90fcb36cc35ef525079b5c76dadd6ec92acc2134e448bff4a1c5a49146db. 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/FR8GV1713710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139ae5b3a916faf72fe643f7e604e9360cc206d3bcf950cdcdbca96ccd7561f2. 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/TCAFX2183030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a6c11faf3dce3443819514a1c2f44932857517e1d7aae504194da36e0df3c7. 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/FR5R00908379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e1a1a01798e2d6bcdffcfda01ae6501697b900774368c1bf6ca7d02ac99210. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRWMB2100242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d4cadc1cfa0a2d0a3ce633a70970d66b9152799ead32fe120a81e870b45a3a. 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/QZTPX2349805.