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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 0x19390cf61a75161db4acf27c61dafc01a759c3f1335d5a2ac8e587ddad3ec9ee. 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/586afb44-81fa-46d1-8098-9b94dd09f24c.json and https://artists.proofprofile.net/proofs/artist/586afb44-81fa-46d1-8098-9b94dd09f24c.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 0x6718b735ed988c748af61e2ecd43ff45aa82c9664181661d6a8e3658d224442f. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:00:31Z), 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/FR0U90900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d095672a38e370ff8d31082fda07f9eeff014fcb718f72669498b82b6cb1177. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FR0U90900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71d63a63e68f47fb493e1b1406f71a7b919d018da41c6a449a88168195b83e0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR0U90900129.
Qui aura ma peau ? (feat. Youssoupha, R.E.D.K. , Canardo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06da41415844010f297002d3a7ebe56b7e138f3ed8b98cb5dfc67031d2d5d6ce. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:29:33Z), 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/FR6V80538112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc46ec5b1aca7d0c627c6743bf20cc0cb3fca221b7a0a0a599103845ed6b0a0. 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/FRZ081200514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b140297829da63d1e0c5abbc5f3dbf41d9f7d42670941a332d73a885d4b33c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRZ081200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320c6ee5e212e4e275b254bbe38eebf2de099ec2d1fded538d77f17869f401e8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRZ081200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938eb059b85dd585eb11862a975550cb1aadf7731e83e336533633af919b8877. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:16:20Z), 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/FRZ081200317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b349246426d36b5dff9106fe1449589183ae919261736e9d65ef9775b9faa03. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:57:25Z), 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/FRZ081200319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d66ece0be1068789ee74f3696f7774bd4c5dcbdfb3043cec716901787ef3f8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRZ081200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e36e1088d15018fddcdb15c70c06d87b7fd712a1c1b4f59f678772b1e378e8. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/FRZ051500308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9751275a238a7bc7e3cd9d27548464d0863d4a591f521c65fc94326f57e19bec. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/FRZ051500566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca742a3e3a2ba61936c14a63167f8f886c64bf1a90f3a97a18409494f91d4b0. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:49:08Z), 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/FRZ051500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e5dc47cf48a3044332f1f7c31444da3bb0d6ded163ce4c32835f211b49151b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR96X1693642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa5c926303a2fbf128f082d806618a0810744ed97f915a89a7eef80be959b5e. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:18:41Z), 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/FRX201641233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0b0144b684f1aa83706865e743a82eb78ae71acfbd2939db7dd82630e227b8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FR0U91701197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f3f05bb9e9120c69a39205b0a908f0019e2484a96f2f2a8df929b62e896db5. 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/FR0U91800643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59fa77c11029e56e028c9839d95d66a5c722a342f6c5dabdc22e740bbd90c68. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:54:50Z), 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/FRX201905562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628a38432a9416c31646f1e8a40933629255aff8f27dd33e084752505bad1b4d. 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/FR0U91900328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2ad8e673d24fdb9f25d3354f30f88af9ecc848857e5cf2d26a7e5b38b201ff. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/FR0U91900352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd54173f64c4684312bb04997bffb545c37a3bac466bef539c41ac88828465e4. 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/FR0U91900355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ea8d5992eaee2207f3ab07f091b907d344463cd7671e38476994e041b8216e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:15Z), 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/FR0U91900356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb939a5d56898dcf7cf3d50df1985e79896dd98f5342399efe95df87c3325c4. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/FRX282203259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdead4b65f63a4f52eefec20de017f75a8a6738287cbf5879e01ea81bd4c60a0d. 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/FR59R2350369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095852f768245c044c958501bc8138d8104bb7bb3c96da07426f75f06b98e2c1. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FR1MP2103600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8477a0ec8e82d221c59a685a9ccb350eb041a1888f545e9ff8cc9b348e9eaad3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR1MP2103610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957da2df2fc179becb428e80671d455aed13268e9006fd52ef7a10876ddc1a40. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:07:52Z), 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/FR1MP2103630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049007a2237c0ceb5da78f748f7ea8f3baf3b0e6d388cb613c8f234f6b69c194. 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/DGA072114039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ab9be906ce31eb28249a0811656835cca979d7e6cf61c9f000b649ee4b6dbb. 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/DKWL21200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b4bff0aaf33691cbbb37b9b49935c5e8ce8e4d35459c2c0c6edcc48cd7c646. 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/FRZ421600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949ce7f150148ebc583b550a856f7dfe463dc0f27c317b9fd390e10fa7c98b74. 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/FRUM71600557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fb49803f75aec1d245b2ad8f26ca4e8ece6439c9a919ef8484e47b1d571909. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FR9W11711088.
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 0x7b0d6d47fc308b22aa369f17df882c1c284f65e1a7be78705697d819b50ba1de. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FRUM71600574.