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 0xae82c873d466952717630849c8bb1908e96636e831be40a84319d417d77d4c94. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06a23ff4-e2fc-443a-a776-80eaada75341.json and https://artists.proofprofile.net/proofs/artist/06a23ff4-e2fc-443a-a776-80eaada75341.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 0x94bd1d9e327bef54c7384802b8936404997f5782eb126cf7828794b792815628. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USNRS2443629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd225a306a3743705f482fa67244b68d01a59aff42c8245b8ee8182590595a09a. 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/UKLVE2401468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8381d17b70db4afe24f8377cbe8072fe7855c0e3c6379e88ebc36b28ac032e64. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKLVE2401469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d0f89001d7bbc7fb1033f3870bf8702defdee2d6594bbab6c7c4c20761bc24. 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/DEBE72400160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585803803924e76774f9af34f5afa3c3fe12ceda4632bed2ff0db15169f3a623. 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/DEBE72300901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2e659fc4c0b80ef00e552f3c0fdf1d7514ecbad5563dfb2da78856cb644490. 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/FRDKW2308564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77979283b65e3777b31385251e855aee350bbc50fefa11ed3145692769f20042. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRDKW2308565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d067a290ed4bc273035bb0fe4b1ca522cb0db4044d93b1eac4f0e47e2929cf8. 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/ITFGO2300000.
Each & Every Day (Life Goes On) (FNX Omar Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce3ed77e525b6b7c063cb22df3aae82aae7444f130c802df5e464512119646b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBCPZ2121317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d459341d3716e4a359264a5df79d686a6105c55a02ba7a59bac615357630b52. 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/NLF712204600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971a9cc69230aa0a99f07589de476e27464ee3cc883c5c51e01cc47bbb275d72. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLF712204599.
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 0xb88a2d7f1cf85424cf845526bc63a8209e7c5bb66669d0f187b7cafb0ca81942. 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/NLZ542101609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bdb7d6fc15fc0858b7ceb507b8a3aacabfeae16da657d3291d3bf198effdf7. 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/NLZ542100198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea6b6412f602375d7a98d475cbd2f15df242998a6e7e9d80bbdf4dc3f4b5c07. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKLVE2000753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb703e593cebdaec29825ceb8672a800d9d2703ecf161f9baf4f64963fbe5a2f6. 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/GBLV62003246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcca014e1696b792a8267353788c8217039426db1026cef3ee0371e43b837ff9. 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/QM7281987842.
Filtered African Blues - Drunky Daniels Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c7fba23c4696c445532fa50c1a6f2af3ed6722175c1598bcbe97c5fc4f106d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PT1GK1900057.
Filtered African Blues - Daniel Rateuke Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c31cfc020de0213e273aba3cc1da904f6b4896b1f3fe9d09c4edf4d39f06ed. 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/PT1GK1900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dda6f8430b276a53708bc383e9801952d1f6c856590d6db9c485c96462b20cd. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA671900034.
Filtered African Blues - Paso Doble Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e113ee9c1a393be77beaa6d68136bdcd41e60d42066c88e9ea71cd5420a4076. 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/PT1GK1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d349d805a8e7c47eb4a4808b309e68850e3aacfc93bc84a19cad3552219b0ee. 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/ITFGO1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6694518573edfc737a24a4a1a4d91ccddab66ec70c409779faa18a4d47714b97. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA671800323.
M'Badehou (FNX Omar & Cee ElAssaad Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4907dd544a85ffd5999da8be38a3433c65c96641eeff50e283bf26e9272e627c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR96X1811134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ce5f606a3387c628e279411a9164e59e412939715685fad40348927669087c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PT1GK1700163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68ac1d07ff6ee60eaa15953f468aaa15ff20a7108aebd3277cf12509cd1faf7. 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/PT1GK1700164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd920532f353e6a4314248f478e7abe02767b94fc489716ae61fbd808e729af1d. 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/PT1GK1700165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf4b30fcc28530cbae084d216ab27f072b5ae188964f31439fcd59e76ae3fd7. 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/NLF712301682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09148f80ffe7811c5aa19b9a25417779f838a50722c7917742922cb00ab50cbd. 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/ITFGO2300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679ebcfcb578adc259e0cd8823821e5de15ea822c2e52a2f62b337f33965d4ca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEY472371837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fef726acc0c3a7a8004e50199d65d98e20774a9ebfc05300119e14421c09c86. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBJX32032137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef5ae51be76dc47211b7f5d171ddddad44f652de74efe5acfd669a294d5d591. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEU672100603.