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 0xcfd882b7817e8570d9f37be313afa20ee64781cba823f3504ab278ada05e537b. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f1d6930-af0f-4278-b44d-66196d60cc13.json and https://artists.proofprofile.net/proofs/artist/8f1d6930-af0f-4278-b44d-66196d60cc13.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 0x5063a093c43d9497db1e475c01dc2f0b995ed4358e52a9108fac1a4f9adecba4. 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/BK4DA2413615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5edf680bf0b8bf9cf77ebc000309c5be52e6d1ee74f322d6558e969d385f2c8. 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/BK4DA2408633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204e61961f3fce5e4cc1d19cc7bbf98e7f208025b6fcf39b9ab031237cb59d8c. 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/QZNWQ2350474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9060bc822b3991b225a9e0908b461107298cd2976f2560ddb97ce892f0920678. 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/QZES62366760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c65d61629bc6c0ac2652b3ab3679fb867d840b035c40e8197f9a3462e282515. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/QZTAZ2309312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b99c3484a324b8469a097704840d272fd8f03ccfbd949340692e4842b6a6c9. 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/QZTAZ2309313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffabf30ff69263970baf77cf7593e756a5df146baab673709ff856879925eab4. 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/QZTAZ2309314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaf826c06603647aeea3974d878b184b4b26c7291182faeb6977ac0ccca32e0. 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/QZTAZ2309315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daf70a5c5ce7a169f20bc23cabbc46040452193fef83196d4d52a9bb038a931. 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/QZTAZ2309317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd4af47b0bdcd90b1bbb2fa4d4f509f20d2ce8b4c71ed32292844e4b0a595d0. 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/QZTAZ2309318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2957955e2a4e8d737033d0540fb33671c873b5689fe60b56bc11fc2a6d9c2446. 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/QZTAZ2309319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b8d8acffb219a595fe9f4e178649749283595cab85d2983c657a95634e3cf8. 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/QZTAZ2309320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe076d475d1910c661b75b08bee9fd00c01e0156b19df5e142baf8a2e7d3182bd. 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/QZTAZ2309321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef3af2b894230ed8a91e989df505b587915ca6e1d3b5b5ed2ee47e9fba1eb9d. 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/QZTAZ2309322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7048b875b49e21407c43adbd4fca8af6be789a32af7f0f3ba955c4cf1ebc0ecf. 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/QZTAZ2309324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0533e8a536d81aae4f2a559cf56930c7b98a6fb1f533b5bc1ff5a58b1b00fd5. 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/QZTAZ2309325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d44effb3d324770cbc45f25bdfe15e0c6ba1db88f070d2c8114ad468ec3b41c. 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/QZTAZ2309326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818d317d60768efb55c781f8c7f7dcf7520a03dff7834404d4410742d75c594d. 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/QZTAZ2309327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e6c5fdec13033c41794a2912de4851d3e94d73eb16024ca105dc668f7a1d32. 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/QZTAZ2309329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0be0ac022758b817fb2c170ff1c24e58151e10bbcd480bce1f43c7e5f7463fa. 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/QZW9N2226313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01fb90b01878bbaa0b6a8efcaa7ba6eef238e5da60ff0f999eba60484295e8f. 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/QZW9N2226314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54478181676ba7fb76e4ec4fd09725b1add14945c5a33b8932becf12ede9f5d8. 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/QZW9N2226315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f105c755e604fd9f0b2331a0d3eb0c5b2ef1a01aaaa03ddd75062fd0b95e148. 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/QZW9N2226316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bbae17b989092e1a091fe3167594a5d83b67b9826a151da6b600afd5331f0b. 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/QZW9N2226318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91291cf49141ed3d678d988a3db2b7bec43015cc1d5161f7946e84f8337b1d6. 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/QZW9N2226319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1a73d8f14e707942faf0f3edc39690b3c27f64858453cae4ac0dfb229b8d4b. 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/QZW9N2226320.
Colmena (feat. B.Yella, BabbyBubba & Joven Fresquito)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b9a32e5ac9027e241ad21d821594080cff1cc87c02269ea8dd762ec23e07c2. 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/BK4DA2319547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10782e2fe9e1ee016a12bf946ed466815d17fb9281a6690cfc25429f75a65f02. 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/SE66N2287240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f835e3a2dfb949a1121f1662b3c58312720384c733f6ab355d48635d2b704e. 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/QZNJV2372201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa630f634ba9f9ed0af0824b24a7f894a7d694c26d0f2fe88130b81267ec7644. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/SE5BU2565548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bda1806a86aad1a9872b342aca9f7903d1d03f155fb3d8c6f0ca77098b46120. 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/SE5BU2565549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4068f99df77ee5ff80256d9ab1c284170cd9c46cdf6504bdcda4a0334372596. 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/SE5BU2565555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce3e4d8e51a99a1ecd7999e3a03f91b5772ace5460a56238ef73f53b7f89def. 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/QZZEB2457081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6830f54c4e7370f7a18af9cb1eb716534518b6c0dd8e71fecbcac894545006. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T14:14:35Z), 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/QZZEB2457089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ba290ee3468f8c59f167aa7682012b81aa8d6158282ced6e692a6b1a275e4d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZZEB2457085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0387f104d3968299c48292758af8b231f84044b55f56c8e115ec1fc0a05bfea1. 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/QZ5FN2523288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220cb12dbb8902161c1c46bc2738351b5cd48b6e4adf8a557a1ea45386aaea28. 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/QZZEB2457096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde99f35a80134b460f3de523447d06f0ae4067107f5572fd2fb3f90055a31a8. 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/QZZEB2457087.