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 0x9b04fc817d38192541dbbc9cd0519c510df8b82d9ad31903abb5faf57685fe7f. 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/87e3db34-381a-4cbb-bd64-a099e1c6e7c3.json and https://artists.proofprofile.net/proofs/artist/87e3db34-381a-4cbb-bd64-a099e1c6e7c3.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 0xfdfb03e6d1f057e16f84a3a19186d665e9527187d284a64c4e81818c27ab69c6. 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/QZDA51924013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d38396a6c5e2809414b68280ad72da800ed2580565e18dc54d86e1961f8a8e8. 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/QZDA51924016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66c0a3023447905e9f55e8bb12aaddb193c5fa72257b52a055eac1747ce89f3. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZDA51924017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b16487f6a75a402bd8471adc9638438b506cf8cc768023bfc72085781299c5a. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/QZDA51924019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a602b9e67b9f1c1f7467ce9eb2b4bec69d89a6aa1201d5476a9ac3311ac8ca. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZDA51924020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45a005e90fb7b18e9b707241c83919d127c1aefd0cf55901f662f39533ce52e. 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/QZDA51924023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f23108e51c5a571fbf87d5d6bebc631db1fed3cdb8bfee61f32e3bd0f65a943. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZDA51924024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01a02ef5f520980284bf0c4cee429be05827dfce47a8f887823daab1c56dd2a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA51924329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5ae5a4a0e56f64dc6b9788468b81c3dec553e426529893217473c6d5280b02. 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/QZDA51924330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726fe3b3cf0205da6f5b1253a7e4bb2cb9bd99ad23dd7f53ddac1723a3fb5de2. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZDA51924335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5117b1043902715aafb9ce84939e5f46ec7e781e60cad5aa76257265f681bce. 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/QZFYZ1906552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fc50216d074283d3b08b3f6f535eeb8179461df6ca26295f3df80209663ddc. 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/QZHN51936935.
Todo Va Estar Bien (Mensaje desde la Cárcel)
Padre Nuestro (Oración por los raperos mexicanos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61877418cacea36bf49cfa288b1415626f28a7017856c0adf9710cfe7195f203. 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/QZK6N2270285.
Yo tengo fe Remix (feat Apostoles del Rap & Señor F & Glow & Marto)
Yo tengo fe Remix (feat Apostoles del Rap & Señor F & Glow & Marto) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb79aa0852467351d252d7fd67c5decb4aff05d945a30b58cc17e24e126309f5. 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/QZFZ62310819.
La Iglesia Verdadera feat Pepe Cantarell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a7a1b9583f7ab9e3fda2e158e13f59f486ed4d399ea1836199fa9a31cffc5e. 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/QZMZ92335707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66afec2e0c13f88429034d75b6224ae6a4ff99a1b68b159809e88cc16e733b23. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/AUGBT2444283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9cd2779a61290c758b2d1290f725678daebf7964befb71ae2e201f48c69f15. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/AUGBT2472946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222fceedc8a4c783ff6ee24c47106243960fe5304d4b9c587c66bccbd7909789. 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/QT3EY2404015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73a2e4f616ff57f2b7a7a9cfc12652dcca7c01146b9e8185f8ad02b8268b00f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/AUMEV2531994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655e50a3283a3d452f56fdf043b24571ebb7c914709baac4c96945227b520ed7. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/AUMEV2562732.
No Soy Un Cristiano Cualquiera (Version Mexico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7427149ef4e46cdfeff7a0691cb328661db73cb3654a1d3792207e232db91178. 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/USHM91830462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a9b2cd2ed8270ec954578dbc861df9c4dd051de049a35a1cd192df63fb34a4. 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/QZFZ31952800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c45c7435404567fdf4b6675cea669029a92847de4b0f551d7cbaec7785c1a8. 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/QZWDD2384080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c45c7435404567fdf4b6675cea669029a92847de4b0f551d7cbaec7785c1a8. 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/QZWDD2384080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99746a12e8354083e4e830ad5c2837c32feca5f3062d8888ba9b0afac75df174. 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/GBSMU8070496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0115501f5f008848199cbc323e7e28f57de0f5ad18f9da86e983d13d7fdffe9c. 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/QZHNC2052629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5a9bf47f522984104deb9957d880fe3085cd6fe0e650e41fbe9eca4e47a73e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USCGJ2035276.
En la calle - Radikal People, La cuarta tribu, Chesary, Principal 507 & GNS Remix - Latinoamérica
En la calle (Radikal People, La cuarta tribu, Chesary, Principal 507 & GNS Remix - Latinoamérica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c02ee20f773d1b1a023d8589b51d6bb1e96dc2844fd9faa340bc7dbf622a525. 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/QZFZ62455991.
Mas Que Vencedor (feat. La Cuarta Tribu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cfa9c23dc3b3bb35a3d329861d0c1d90712014447cbad838efa8309e465cd0. 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/USCGH1901770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7214765f042b8e53b4ccc91009d8a5080d77980dad4ae6c8009260554dfc16fb. 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/QZNJZ2455831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc861ae1c4eb6a5d9b69cbbfea357a82ff6ec7f486891cb41af6108d4871f556d. 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/TCAII2487710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175fb1e20e6266a6374234d4754f7ca492c231bf6b075b6c5cf9a051248ef34d. 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/US3DF2450914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33cbf88ec988c387df387037acc4bc56af5fa1ee586876993d5a13126048d60. 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/USL4Q2454752.