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 0x7e5f52739d5440faca2ddacd6e18cfe186d2d346f390c41cc8617838825aff0c. 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/3dff4d79-71c2-458e-a5d3-798f5c9c9a3f.json and https://artists.proofprofile.net/proofs/artist/3dff4d79-71c2-458e-a5d3-798f5c9c9a3f.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 0x4a4da6917c0147a080aed493f9b61b3d56f3487fac6993c532dddc6391e03c00. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXUM70903366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd587131454f9aa654ce8e83ba61ec8af2d1ae1a9313b9a27f59e6065de137cab. 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/MXUM70903369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bec9eb586bfcf6ff9a58a3b8b71ed7cb9ed4a9c977f478057dec131d6cc986. 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/MXUM70903374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c1796e3636eba5a72e728887034453086d64bfae171e6f12351dbaedf7e04c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:36:52Z), 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/MXUM70903379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbe7db9f57bf4b39fda9ffed65066914edd6ee0344e35b8f529038dd3c4cc24. 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/MXUM71002603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cf59bdd60861db6bf873d2128dd4d6eb4e6354b1aae22c5c67e4209af4d9b4. 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/MXUM71002605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf22445726e08634b6cc7dacc42273560a6efa061c6e01b345a7afa5d8add555. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:05:46Z), 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/MXUM71002609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442d1025783cad341d405fe583c171713611dc6c35b19dbb3100a4b99a71efa7. 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/MXUM71001726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e8dba6dbbb635d557944c6951d872c099301a86578f117cd70e33b9c11852f. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:03Z), 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/US3DF1401442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7216549cd95f8d86da92d589efb02cb26fb1944127bd6163ea2e98d4b2af80. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/MXF550902605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1f9a3855ab1c70074c4d5abfe5ffc7cb40545754f6b5087ace844f491137f4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:01:15Z), 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/MXF550902617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5683b0b46e4704c7db890d250f6507a43c04b6abddce682104f67be876d4e969. 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/MX4972500977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d086d9fd611dd082c0a5495028d25b0084a250f95dc13baa4c6f46bd358b32. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/MXF550902258.
Cantos Religiosos de Alabanza y Renovación
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f15f5f469a685b2c036c88b1b5cff6cd71d9cfa346fe1131aa3f9a3f491bba7. 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/MXF551705521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76895887290b780135eaf01c0ee7ec6f38c0e55350acc7ee61b11c912b61d16. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/MXF551705490.
Reventón Titánico Presenta a los Llayras de Chito Corchado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096fb7d8db3b59918024c51b12760373feec96b242fbd78a5a9602fc60aa11f9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:10:22Z), 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/MXF551705492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495f83f53c92bb58d4601c159d7550f64486cf7403d57bb398d620985de1ee07. 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/TCADZ1803023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846cb16f371940a4f8eb9e98a100bc211603c14540945de122d23cdf398ca343. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/TCADZ1803056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2b4b89e11b2162f49b6c0b8b23286081e4f8a34e1b1ca1ae02327f459c0e24. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/MXUM71002611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4ca30f6ba30e73497d0e6f17c81baf9fa744f9eff3645d5b256b1b6b1387e7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/MXUM71003821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929ed2f26c9eab0cedcce67b88a707da23c171fbd12f20c849e808a08c1ced35. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:21:15Z), 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/MXUM71001729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a26867c20721fb2057123a2a791700d0aeaf5be1efb432c8531ca05869471c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXUM71002599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418e4c95736369a56e6a9f3d2bc6c2a7eaa80c7b5d60bb65b6c3118fa13618dc. 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/MXUM70903670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eca443e38df5215d031592de838d91f1b6309f255ce761c38c78c7521a20c4f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:17:33Z), 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/MXUM70903682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee18e49347b51baf7ba9e111f5eb1e4f2b25b0a8ae96529a391bcd1d03770ed9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MXD782004990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf978a20b8575f9b7d8cf2000459ce683fabb578b9d78a4ad88cffb516b653443. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:30:51Z), 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/MXUM71002607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e3cb86ea07bea864498a4f11bdd0f1c20ffb563df1971d33065ab2183dfaff. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:59:46Z), 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/MXD782202124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e3cb86ea07bea864498a4f11bdd0f1c20ffb563df1971d33065ab2183dfaff. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/MXD782202124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dfa2d43f12153340dd2f95d75912ef4bdb45b3f680de383f2b2e24593ed4e7. 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/MXD782300431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a84c092ac4e8cd79f93eea78ad2e2ccc610a039f31c2ffa93e843d381dce230. 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/MXD782403040.