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 0xbeced115fac7a3e0cbf61c363d0cd468fe827ce029cdbb752fa25a2e68739357. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e316c159-4dba-4334-9163-91f6f1f3a496.json and https://artists.proofprofile.net/proofs/artist/e316c159-4dba-4334-9163-91f6f1f3a496.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 0x340ec36a757b148673d4cbf2f7fdb9ba5cf793f4ef2f77bdf3a27c4c04acc6d5. 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/ES5151000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155d80185ca511c11a11998c73458f26f9b96c1e212d46ff10ca66e9e57b590c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ES5151002546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c2c641d83ffc6badc6552aeb504dd082c07cea86779ac3e536e2ec0e7bf1ed. 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/ES5151000292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a7f2d5f3dfbd28462af8e45458815d57b93231804b1ec73cf92584060bd365. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/ES5151002554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fde2e348c50ce3699503d2fc452879cc2972995aab170c582232452aed5675. 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/ES5151002555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dc3e6f77a67383a3d9bff07363e8df8476f17471142e5af0e3a9722afe82a9. 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/ES5151002557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3400ad7fc08d52506217150381fb4347635922ea803aa95c996164c4bcc4dbe8. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:42:46Z), 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/ES5151002558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1fbe123df889420d7fd63f823b3b0c692fb28a58dfea79d41d3cbdb2c37855. 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/ES5151002561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc10d46f778391ef0065285df527a85cc4b81aec23be6ee35604e99fe6131e9. 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/ES5151202256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47124c835161d7a01a53355330dd6481388f18ab131ba660a0e3bcb342d4a294. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ES5151202262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d43450d503b29e8c853df386cbce14ae6d7d8aeaca2af2e53a629d5e80bb95. 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/ES5151601553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d0b1226ea91e530ff4dbda0e067f27f029f3c2c9d7bcee423185a1c6ab00ac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES5151601562.
Quédate a Dormir - Directo en Estudio Uno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f28e039f122581217d98f3489392cd46aaa3d990daa779a930ee8bff4366b5. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:07:02Z), 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/ES71G1778292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d4c98df0001357c3e0e9cc319d20abb47022f9c68a5a95770aa471fb9117f2. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/ES71G1778296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3c7e28024654338d0bab4587948ee0f6bd2b380f3113fa782ce94379808c8e. 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/ES71G1778299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905f3a1239025106b00a927d1b3a2f2b497235a1b3cccc8632debaa51c22bb54. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES71G1778294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65727be158c4ba8bfe156170d069495f30999249a48bc284d79e8360888e17d4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:01:14Z), 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/ES71G1778295.
De Negro y Amarillo - Directo en Estudio Uno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d9776c1ab0297f9d00d333e06f977af54a0f04f77ba9a5d58782828f2d281b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES71G1778298.
Décimo - Reedición (Directo en Estudio Uno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d4c98df0001357c3e0e9cc319d20abb47022f9c68a5a95770aa471fb9117f2. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:58:39Z), 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/ES71G1778296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3c7e28024654338d0bab4587948ee0f6bd2b380f3113fa782ce94379808c8e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES71G1778299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb770e403c02fdadfe5485847a163acb89dc0d9369fdf0b6423caca1d03407dc. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/ES71G1873759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8971054b4d46703d8d483124f249471ca9f66d9f5b108f10442d17b5ec1daf. 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/ES71G2142674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39157c1b321264f4dc59aae5002a4380bf20dd610b5027b93435b06b9f8ef797. 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/ES6082010401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129f09b0c7c837407ede1f853f96237a107b8381b8ae3b54842d7966bcccf966. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:27:48Z), 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/ES6082010403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502564e831b1328961d82105d38203afe8d6d6f1b79b47675d7fb52847cdeca5. 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/ES71G2142679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550155db0bbccd8ff7d6bbd5e266fc43e51ce2076f41dcbeea3ea98ab80bec36. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:51:25Z), 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/ES71G2142680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b52d8fd21989bb573e244abeec893935c724ae7c6a039c02a036ffb1e5af18. 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/QMFME2516006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b01f053f5f37193629a0b8067f3d76ed9c58dfe306b307b99b6b76fe1957bf0. 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/ES71G2240076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea6acb793ce91303d4f25dafda6cc7658d40a824e918efa1210db295d118d14. 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/ES71G2238337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6ad5b8f2fa17396c36c8d3b4e4cbd3909669d44afc11828a6db074827c2922. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES89G1900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a92c15aea13de28ee4d964b7fc2263b68501dcff7a563e976e2f636d7db062. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES6081441123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6ad5b8f2fa17396c36c8d3b4e4cbd3909669d44afc11828a6db074827c2922. 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/ES89G1900035.
Quién Me Ha Robado el Mes de Abril - 2020
Quién Me Ha Robado el Mes de Abril (2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bbc96daeeaf73dd5039485fe0f1a814b4ce4af98fd495b573616e75a51f654. 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/ES71G2021500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc86eae5fd1a2bf8e48040b3d907908ac5016d21bf614bd512c1d9067e43b2b9. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/ES5151002556.
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 0xfa6b20ae98d50948c5133c66e8ab76f181e375960f4d6227f629a4fb7c93548a. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/ES5151900180.