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 0xf2ca2df8f8c3031565cd893268bade8503016686b4a41f364b47d2fcfab24367. Chain 2 (Bitcoin): anchored in block 953780 (2026-06-15T12:02:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3fe0739-e5fc-4f71-9e1f-6a38a0cb244e.json and https://artists.proofprofile.net/proofs/artist/d3fe0739-e5fc-4f71-9e1f-6a38a0cb244e.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 0x0fa6eab0dd110e6d95a84289ea43fe13960981cd4da24dcc981e549be005e1dd. 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/QZEZZ2300366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24f86820d58ea48c9cde4a644e61bcaacab1fae90f92280a5aa9d59466cc491. 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/QZEZZ2300496.
No Me Arrepiento De Este Amor - Versión Salsa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c55c60c893114a92ae15bb90c7639dff69f273b676079cd9591e0d263298506. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZEZZ2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7cfd7c6b0e0ac1c7396b0624c5e33a5dfc740da14721230f9f374249a038f4. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZEZZ2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7cfd7c6b0e0ac1c7396b0624c5e33a5dfc740da14721230f9f374249a038f4. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZEZZ2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80bc7141174d01b5e7023c3f8f37e19dd7f8e1470fceff756a1d924f0a1e550. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QZ5AB2383437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9409d01c45e269735f8843ac993ceebf6b660c22c0b2bc5e502ab1c27d503c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US7VG2347076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a6ffacbcb0b2cabdfb136359b1bbfce25444a454f8aa7c139541069f267f55. 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/QZW9M2246835.
Ritmo, Sabor & Cumbia (En Vivo Desde el Teatro Metropólitan)
Medley Ritmo y Sabor: Tu Recuerdo, Siguiendo Tus Pasos, Rumbo al Paraíso, Linda Mujer - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca71ddd3e1abbc24ff0a85dc7fe26af7634ea2efb144eef04b585e442cfc2e9. 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/QZTVM2310342.
Cumbia Gabacha - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba311138da25d1c17e4c9ac95e36d8712f4314388bbb9f9565b4df5801393282. 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/QZTVM2310343.
Corazón Solitario - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9f4f4eb0e3c27c39696e0ed6f014ade3acbc01c32b514e801629c9f22fcb94. 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/QZTVM2310344.
Cumbia del Cuervo - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4669d4013d387a0dfbc1da8f0c1b4fedcf7e4caf93aed0be3e7dc6456a58e5c8. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZTVM2310345.
Medley Costeño: Sabanales, Charanga Costeña, la Burrita, la Brujita - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7234e8da62d7476255029d4ff885837166fc04cc315830e645491b626280b5a9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTVM2310356.
Wera Cumbiera - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae583b14eb8044aecb1ff5284de3dd8fa23dae9fe8440a4feda7690653cbd109. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZTVM2310346.
Medley del Recuerdo: Un Son, Cumbia Caderona, Yambo, la Hierba Se Movía - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14181a097bd859d7807fe547de986a7720a6e019a77c216100092c61dd5e9b4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTVM2310347.
Cumbia de las Estrellas - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb358514c1ec72930df6f253a060ee22201bed76036c290d892fb2c4d5292097. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTVM2310348.
Hoy Vi a la Negra - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e26a9ded019b49f80b13377faea923a12bee7b85ece44296aec9f626fc062f. 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/QZTVM2310349.
Cumbia Popular - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c103ba590c364ad7a82b9dab0d031312fed85e26dac12da6bd307509102e9a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTVM2310350.
Cumbia Sampuesana - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc10dc67b3c11eae046ec184520d43f77d8f4af2c04cc0004f82fecf699a5b7. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZTVM2310351.
Cumbia Callejera - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76072a289d877f769124991adb01b93af1c7941aaaba76750ef5d0f6a2961695. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZNJZ2360635.
Amor Sincero - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe64e92c2ab3fdfd8fa3e70b432ad93354bd06b4fcda9c35e84bf0c29906916. 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/QZTVM2310352.
Corazón Enamorado - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3b4b1a32a82211f752b5029bc87c161df6e9154a1d4731c831c70dc743131f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZNJZ2378110.
Cumbia Cande - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56667f01f42ac78db08863120d90e5f8eeff970be241ffdb0ac89794e36c1048. 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/QZTVM2310353.
La Guaracha Sabrosona - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c8b7c8896cea462e173f0ff3a847b7b4c33c26ce09abfb12c5d24b70806f69. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZTVM2310354.
Mi Cariñito - En Vivo Desde el Teatro Metropólitan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a84a37084733f23073ac0322f6ffb305760bb7814d7a02e97907f0ce153171. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZTVM2310355.
Olvídame Y Pega La Vuelta (En Vivo Teatro Metropolitan CDMX)
Olvídame Y Pega La Vuelta - En Vivo Teatro Metropolitan CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4ae1c9c0452f7e15f3302642873e2d2e72e583349b82dda55c709868eeebce. 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/MXD782402590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b44115fb062f578f1de14128ddab6154ecfa66f092cf92b94ee0de344e08bf. 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/BK4DA2502286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8a25023806eb2391f6a28a950101a6f57cecaa845d20e71f95560201f46726. 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/QZEZZ2400043.
Danny Frank En Vivo Teatro Metropolitan CDMX (Vol. 2 Boleros)
Piel Canela / Todo Me Gusta De Ti / En la Orilla Del Mar / Sin Pensar En Ti - En Vivo Teatro Metropolitan CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991057b7847d515f1cc077443aeec9a95056abaa32cc8de27aad4a6df213ff90. 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/MXD782403105.
Vendaval Sin Rumbo / Por Dos Caminos / Historia De Un Amor - En Vivo Teatro Metropolitan CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ab0f15b22b637a24e71835405c1191811beb405728ba4b8abc91da4d66e447. 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/MXD782500411.
Para Decir Adios - En Vivo Teatro Metropolitan CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8fccd4ba9572a4d168d9eefc5a030a1196fdcf2975b5a4ccdbc4129adf5535. 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/MXD782402284.
Olvidame y Pega - En Vivo Teatro Metropolitan CDMX
Contigo Aprendi - En Vivo Teatro Metropolitan CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fe693a8768bfcf8bcbd2ddf1400835761b52bc4a8d0a7825bccee8203b35ac. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QM7282528880.
Cuando Pienso en Ti - En Vivo Teatro Metropolitan CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e47985dd8e5d170fcd480c38351127ad04268b15e946d2147e991a8a34452a1. 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/QM7282528881.
Remolino - En Vivo Teatro Metropolitan CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6ae8d226ef2afa8b329ca7e7c4bb7a085ff7d3ca530beb122dfe1ba29b160c. 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/QM7282528882.
Yo Lo Comprendo - En Vivo Teatro Metropolitan CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef812343abdb171ba467bdf334770cdca2f58a45ea182136f7d406d8d70494b. 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/QM7282528883.