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 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 0xfdf6e752303de16d1ae2698c354fb7cfc307a7f7b58b62873b5e668af9c2da00. 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/15ba6c4c-bb46-4158-b7b0-c9cfbef765ef.json and https://artists.proofprofile.net/proofs/artist/15ba6c4c-bb46-4158-b7b0-c9cfbef765ef.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 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 0x5deceec04ed874c29fd605bdef859a410561da0933a383d01b66e038388d7e59. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR0U91200606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed68c67e1730c611aa4e15fb3c06479546c57d2d0fab285ef25c2dcde08a4855. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR0U91200608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c9ff4cb76f360221ee9f5ede0a0a2d8abed69b440f7d8a0da09882cb52eed. 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/FR0U91200609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959b1615b37a20a337b728c1aad65da65541d74b81a72cdf6e8209bc97c4e368. 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/FR0U91200612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141a742475afb7fa98568fc9081e2e0d5cc0c139005cff088977688b246c318a. 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/FR2MX1300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a2267b884793d95c8ef5ec50299eacda2c7a84d0dcdf5af349f48b69450d8b. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/FR2MX1300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcd85d59232489979a5daff2be2e6d9030322e66c21b3cef469eae57a2d5dda. 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/FR2MX1300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d107619ea78823e8f15ed491a7cff729ca562beb7da89038fa1a086266d374. 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/FR2MX1300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c2acce098d3d63b4ff04aac9f1a4259edcc86d8cc4c6f56d7f07471a42a266. 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/FR0U91600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc279f1c2121f211968abca2d7c0749bc066cea542b230e4b26be991f36e1b8a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR9W11701202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb851f675fb06472cadbd53a3f29d00836e3f5a553cbb82fff06d2c712d958fe5. 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/FR9W11701205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507493d6c32919c6ede99316dac8bccb625a20ba2b257a085ea3efff2a346b18. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/FR9W11701208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7b22f79a9c00af91099d56c03f673f7344e8b214223d23b8e0b27e9cc53557. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR9W11701209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bb00ac12b01b77b0362d2293bdb07de4a7000c261e7c5ba0498bddacb0c822. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR9W11701211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049fc050b3c9749a45d72f34fd7ff53f86209206428e6a216fbc446254afe0b3. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/FR9W11701212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1119492b9ecaae08b10b750fc97effc1358ca1266052b18d879e98cbee5816d2. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/FR9W11701340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bb5c69232d418960039c2156979befa3033579b039069c7040894b393b253e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR9W11701216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc908af0d858259d0178334edb6f31dada428d62ad5c132310541030e95b02c. 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/FR9W11918842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba97dc15ce03a66d9ad52ed68cad64fe1f189540610f8ed62c43d5c28ff76df8. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR9W12019879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8b710da0adca8da63be6c5f980d3ae1a23b92ac4557b0bb6600adbbd6825cb. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR9W12020182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3119e1af07e2e6adca6fdbe6cc6f871b31ee2c4831c7d49d15c76916f2601fc4. 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/FR9W12025701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac654ee5cd17feb2c83bdfdb1933d8ba1f99bc70eca73d73aa2521750c2ae87e. 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/FR9W12121966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa8bfa027d5078f9e79e6d1f1a3e5367d24fb64605a6d7d44a4ec8e285899aa. 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/FR9W12229253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab719492d70b0ed6cc55fb04133b935c0dc6e6b0493b79f26bd2877b2f28839. 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/FR9W12229617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967cbe029f03902f44ccb5636446b0c9396cc6653ea571c72a10575807368b3a. 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/FR9W12322934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65699ded8048a41ce8914dc5b0d8630af830587135a81bc14eb34e5abc4f27b6. 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/FR9W12322937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641a90188903f7b11def18d397edeebf9a99dd4e92201bdedf8f314b892430da. 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/FRX851701083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ba21905e9d951d294ae7bbdfde44f9a7f5ac11b9505e900f800395e7250569. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR9W12229246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5920c8d9495b6faf1c61f41406b352d57a6f548bac163c46da6a0d47fbb1da3a. 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/FR9W12229248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92aaace27c867042d4ab4b97c6d670c2a09dded6cf1afe9772905ac28697c8d. 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/FR9W12229249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa8bfa027d5078f9e79e6d1f1a3e5367d24fb64605a6d7d44a4ec8e285899aa. 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/FR9W12229253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4071cb1d2351edc482a33f5473610729add5d19c3bcb4b27d5ee64e32398c66. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR9W12229254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000f95f1f6e72a1c0b85896fa716821fa14229a93187afaad2fed17b1e400ace. 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/FR9W12229258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab719492d70b0ed6cc55fb04133b935c0dc6e6b0493b79f26bd2877b2f28839. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR9W12229617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c9354ee5e8e28b324006af461a6998ef1a11ae022df7106e4dcf2ab6f66a1c. 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/FR9W12226007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac49dd5d9cd1b74b5d6973913e0a8530d062aff3e5dd56d9b863de85a32d8fcc. 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/FR9W12134661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c9354ee5e8e28b324006af461a6998ef1a11ae022df7106e4dcf2ab6f66a1c. 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/FR9W12226007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac49dd5d9cd1b74b5d6973913e0a8530d062aff3e5dd56d9b863de85a32d8fcc. 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/FR9W12134661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2157d3993e113e355651fc51bf15108f09af86eec8b081dc02d067367bded0f. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FR0U91501698.
La belle époque (feat. Deen Burbigo & Gros Mo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c23b3b2ee9a020b3c1d9fb8b1d23e23422d10d986b64488b831783bb4b0abe. 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/FR9W11906620.