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 0xf9b1739a6360b6218baeda2a378ff68d6351a9faac48f2851a90842c6501d62a. 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/e072091e-04c8-442b-9456-3352f8ef7cdf.json and https://artists.proofprofile.net/proofs/artist/e072091e-04c8-442b-9456-3352f8ef7cdf.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 0x3c1978576b04891f53036a4e20810cb547267a249871dc18222833540cf9b6bb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBSMU3317455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92ee525e249800bed00a5315427880871b8f543d1c456644b122407fb2eae30. 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/GBSMU3317459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63ce2809d016df0ba35b7bfdd99d31abb922fc5b92d1bb2e96307e2fb873419. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBSMU3317457.
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 0xf62922df78adee4b80716421b349d688e3cfe2a080074e4e4c717e66e9164d77. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBSMU3317458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57f144a431f377e05292d65b35b8a13c1c8582553e21ed16a3d1cf57bf403cd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMWW2331832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254da4c759e5afb25e65acd0b14bbb5ce1725c6c9e33fc9e4b6ba87f288092e5. 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/QZMWW2331834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6260411ac32f97a84d0fc38b9c824b88446b28ac2e545f08c30fadfb0bfaab. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZMEV2352454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3de72d784ca27a9d305ff496a7ece5381447c86d6038bcd073d9438d2c6de79. 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/QZMEV2352457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72e458b37ad269b21cabf106a6cbc4f4427a51dda21f5f2935f5b331efcb371. 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/QZMEV2343109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc520868d64117351e019b3a45067e75bdf973a32f487fbb909a84f0c22db4cf3. 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/QZMEV2343110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be9fd7988e20c6beea58fe3c3be30cf0b7d9c7bee8ae5b8f70c4fb4ccb68cb7. 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/GBSMU3316976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d41cf0c882d4d8886714efbbd249bf648ca7d20bce64e5c6a1d11291fd6649d. 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/GBSMU3309317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc16c2ae76bb77484454072d9f171fc91eb936ee537c3260a7857517d86339e. 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/GBSMU3309319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff37d84a6736202fbadc1c01cdf4a96d09c4a3c533925f8054a19ca7d06f9e6. 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/GBSMU3309350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c4f65b78d5e6cfe00489dc9de7779ff2da63a8df875f57cfb5fdb251ed9d04. 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/GBSMU3309351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8190c5fee6f12b0cbdc3271830ce7fe7cd4a37a5b29d2d14206dd7e5dd811722. 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/GBSMU3350337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cd993ae7ef38971945e52b3cc20d1c7f4b6de2f8c3eb555b868c6068e0aedc. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBSMU3309313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b658094553c8091a6b70eb474a11ca70c360f80b4fd2b607e3059767f5c1f26. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBSMU3309318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fa41408971aa444987e2a7c216a299a0e4f89859d44357807d7d28babe0412. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBSMU3309322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bc4d073b449b2adae8e67779a8a8850212b4c8ac04abc89e9231f067757e9a. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBSMU3309323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205a8deb22f3a02cf745090db216db3d3cf2e29c8632cc307dbaefa6bb60d164. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBSMU3350338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19517b5c5ad1786df57c3418713b4211fb708af0a9966eced22311d7bf66edc. 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/GBSMU3309085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458e3bcd59cfe5571e4f2a71e056cdfe198ff9c64b333e28aa598c6dcbd83209. 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/GBSMU3309087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f74b18f5a458e59ff426f0825bee2b2009a8938c0e4d03822c0fc11597e3fd0. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBSMU3309158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd87c5b8f5be1f821edde57f1fe8483ffd1a88e5aee368aed293744444dd178. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBSMU3309076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697e05aeaf2c05d500bf85a21ac65a3867a3f02d8dd0e9c01ee75ae671b96d5a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBSMU3309079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1852f79e5dbe81da336c327b537a567dfd4103efd2c3f1caac6ddb39098e7d6f. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBSMU3309080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53740372066482b1d949d7741f7ecd979485088870d45d275fa8d98e45962f70. 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/GBSMU3321684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd600879d1c23a7538144d8c405c8be5cd14e5e6d6afc0e82f5f24fe134aa8a. 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/GBSMU3311736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7327e0b4af20f0dbbb205bce8feb4ba34840eccd3fc0b8eccfee74f717ffce. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBSMU3311734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c551375373387d32c7a16fa02e1fc8e2e6aa3bbd3bf4a6da28ea23fa31a51d. 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/GBSMU3316589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03a191b57a9f387e101d68301d1d84e0a21bee48f16e9ebf4d89ce8cb9cbf22. 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/GBSMU3310096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b1d82d1e4b6bee9e0ce7a40396232b81e0aa9153b11ca1d28445be70165865. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBSMU3310097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5cd23351ca5922eb708aac211158045239c528bd7c0cdb5bf07ccaa7440921. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBSMU3308721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949a5fd8accf38a885eb0d44408e12a3ae40ab077da145432d6bc303576489a3. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBSMU3308722.
El Suspenso (Blow Family Inc. and Twins Music Presents Kenny The Ripper)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ef65c3071bfb4d4dea513c6fd23e12bcbae7dcc8c3c7638fe4839695e42fc8. 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/USGPJ1111103.
Solos Contra el Mundo (feat. Baby Johnny, Algenis & Noibat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290996732b5fd59f9e4443f23b926b95c8c461a33a37652bb63dea2e2a66eeba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCACK1553571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138f5f4fd18324aed559d0ef6afe4827b4f434dc9064f05373ebdfd04f80e089. 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/BK4DA2321996.