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 0x9bd1dce080e407fee434ce215a4b1a3323f5f276739ad577279a42d6b916d19a. 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/64efc6e1-f700-4df2-bf87-198684735f68.json and https://artists.proofprofile.net/proofs/artist/64efc6e1-f700-4df2-bf87-198684735f68.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 0x4ca54f988dce0831653dfde3cf20e90584573662027b1e9d54e664ad2cf8ce16. 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/CA5KR1940804.
Clandestina (feat. Emma Peters) [Cocaina Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa8cd5f90d359032006a03135afd21bd487f4b4c11f92fb672ba6c25e65c41e. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:39:15Z), 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/RUZ661901906.
Clandestina (feat. Emma Peters) [Imanbek Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd0cfa10d988b673052d8ac57985a69801063704467315efea344d129242c94. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/RUB422001111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefde6f807b1d227328933b5fcf1f813178b5e002a589dcf348f10d9e0102d593. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/RUB421901040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd0cfa10d988b673052d8ac57985a69801063704467315efea344d129242c94. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/RUB422001111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be600a4cbcba009f63d9b74408d47f07ee39a49f779c1f9651050c8c94fcf76. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/RUB422000302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b51db39bdf427c0ae354d019e3efb9a76d0a6cc971a53378d639d545037003. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/RUB422000296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6281f6ace9badac613e76af83a48166d81bb886d9bd885fef898f3bfa3a24c. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/RUB422001927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3673ed5066a8bfe2d2b14708d8bac1fbd81b54cb02a1e91b2a52de85e1556e5. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/RUB422100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0473fae1f12dc7270b37d996c0e1ea93b8ceff4e4f4becaf36852adc4ac34a. 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/RUB422100147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241debf3e60747e5b380ecbdaf5f2110e57621bb2e201ae335e77e00c9a2bbc6. 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/RUB422100665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dde28f55bff17aeefebe63ac45b2ee519d002f2e426addef10c57abfb2953d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/RUB422102540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7726e95d472ab60a6d47ca18a2eb06b85c174115b96706d34d1af07db90a94e4. 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/RUB422200832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd84fe92e21bad3aad011b701678cb91badbd9f703047c9d3eb05e545e2f314. 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/RUB422201838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619f75a854a4fb988945f383831e0309d384da56b82671f86ca233abe56f3551. 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/RUB422201839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd89af1f8ad07a753caf67ba22ff3b382c50df729ebd14ce17ad68a74f0c424. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/RUB422201840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5b4fd07d77f59a13afbed0b383494f5d577d362773064a7f8231687e19c1fb. 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/RUB422203202.
Clandestina (feat. Emma Peters) [JVSTIN Remix]
Clandestina (feat. Emma Peters) - JVSTIN Remix Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3634dc05a47320366d7fe784249e165d15ebb959f48cc358656415196eee73. 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/DEE862301005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf687469de834d4d0f5be731629cef86049dfcfb433404d4681d02b8a9af7aa76. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/DEE862202649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf687469de834d4d0f5be731629cef86049dfcfb433404d4681d02b8a9af7aa76. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/DEE862202649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1285c060e7f9346b4aef2ba2fce8d33ab25e1628f80aa2225bc1e09152aacc0c. 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/RUB422300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56155e263f336f2335ffa43db4e0ad431ceb779c5c2d7bbbaa1a925328da5252. 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/RUB422300222.
Clandestina [JVSTIN Remix Slowed + Reverb]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04c676a66d3ca2faf63e3a403eec15078e09d3f3f6a6b519890960cff06c04d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:52Z), 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/DEE862301003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de333242193f772460cca2fe67231de0f3f0eda4517475f582d581bb3482551. 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/RUB422301502.
Clandestina (feat. Emma Peters) [Slowboy Remix]
Clandestina (feat. Emma Peters) - Slowboy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f29221385bb7767a4b5d4eddd3f9c1e588ee353bea29928f2458987a8e924d7. 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/DEE862300911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e02712d3ff1a59daa5ed1e50ccae6d8f13db718381f7c13216a3ab2637cc907. 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/RUA1D2375811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538f33c59f78866ad61c0eaf9b6bfc14f8eb7dbbcab8aabfe3bb7135f5693302. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUB422303819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f4d35703d732f39bce27b5d2002415a62e7a492bc5daad9eef499e2d39959a. 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/RUB422400714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5593cbc63ea11e7abfbb9381b961aee0f712493f07a7203d0a5b1568ffccdabf. 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/RUB422400840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ddb25e76c7fd54be44215831ddbf97d3bd5101b611c431a62c5f81936cf6bb. 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/RUB422401453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14886522b5fb9a57947ba6bd74e494560af5ae9793e1f005b9c579466fdddf8. 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/DEE862401457.
Clandestina (feat. Emma Peters) [Oscar Marteens Remix]
Clandestina (feat. Emma Peters) - Cocaina Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3608a349d36dc53d03e4508e32c977642766ca122b6d227bcde6d7a91f71e55f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RUB421901452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab9b8058c2db6ca5596ed04b2091b0b6127f30cf3f337eca09fe2636dab5057. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/RUB422402724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa7e92af1c6e3efab3e4533592800f85206e799e97fbc9708272316a1052b23. 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/RUB422403735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e73c31b5fea860923cbca1c4fdb341fac4a44409c3c089abfaeb2565ab74575. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/RUAGT2571122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb53e31457bb4a8fe1b30637006c5127b23b8f1ee0c4836dfb801e3f89eb5bd8. 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/QZ5FN2195184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a4df909fb5387d67ed63c8b6b48de8dd5a1c38a94d1c9bf4c5767ba6360a9d. 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/FR10S2332099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935e182a04b41c184622999147f09b89f72a348090b044a637586930ac02dc08. 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/RUB422400279.
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