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 0xd12eb8182f12dd31f3e2545811a6bf036ce2467a34f0681331582bbbfb648d7e. 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/b37debac-6e48-40c6-81f2-22a75675e661.json and https://artists.proofprofile.net/proofs/artist/b37debac-6e48-40c6-81f2-22a75675e661.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 0x3f85a5ee20f9e64ad00a268a9dc8d0bdc4825874e249fd4671471c4a758f1c40. 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/FRX762201998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa6785b401245e27cf6d26df921d67addfd3aa7467d0e2326366b3b402fa707. 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/QZHN92472864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfa722a8a2dd3fe84bd26c7d30167dccda648dd4cdb9925712b1d7428af089f. 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/USCGH2031624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91facba46c7324a521749c5cc147732425d17c5d7e48b8d00b8008967da31ad3. 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/USHM91934317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8a8b4a9b267f71e37ce9dac6081549b365227ec199d97a8d90f456aee6eb43. 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/DGA062319082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03be993d58888af39fc0f2c1db29c9c5106e5c07270a463bc1669e6dadbd2a39. 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/FRX202257587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0348cb335f996a9ff694b5406eb58bbc6732a0e2cc76f07dbdf70e8ccdaa0bb8. 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/USDHM2102890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09894b9e0d02196bd0f5197c88663551d593c7a13fabb0d93921d280e5ee2940. 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/FR96X2438110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bee9395c13af4ec21f00a3603c29e0ad961d136af392a0152cf93d015ee34d. 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/DGA0L2341787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43f9555e33a4b5660691d3880bc10489f9c57fc08dd915270be9f40d4d9720c. 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/FR2X42320534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c1d8a21bf417fadf1c4561c38d17769fc067dbd18ae64d5129fc348a6b0518. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBKPL2285743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185716496e4d4f41a4d78823ddd864939fa3260b77f04c27b2af04b806d77294. 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/USHM81930321.
Uva (feat. Chino El Asesino & Juno the Hitmaker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7284e594b8ff4b836f9c2b3d91d34136694b131086df8081a57b56da0c2cb78e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCACS1621593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bdb07f9b75fd0cd8237787ef1a49cc4bea30e28e3b1386049262cbf6eafe4f. 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/DGA0P2469618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe2b49d59741adf211b8f90db93f8a5ccfccf4fdad059c575cc7b5831c36b87. 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/USDY42337664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ba54692cf4275bb1ec3223beda3f7b245cdef766231a9a147b0c656d318511. 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/USDHM2112363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613a74fd81e6a7d0cc592c1518cf241b78c5bf6d61761b72009e8afadaaaa1b0. 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/USCGH2035950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79cf7169a3d4dcc70b5e2e5292eda5da94ec57836ac4f94d60c8fa7598407b6. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USDY41906250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8941174b2cd4ba7e315739526e377937cd9a465f3660958a532b6502b8ac35. 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/USDY41842135.
Un Angel y un Demonio (feat. Benny Benni, Endo, Lyan El Palabreal, Beltito, Letra & Pacho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed027d5a6c22e8ef2ba51934b4366d1078b457948f30396d24323ce2cfc9414f. 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/TCACY1776253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb0c42d737bb24cd38a418e1cf42deb1b8b6be575192f5f958d7734643b7d84. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCACY1776261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163da2a3a27e000039b405e7028be9fd803b599f04a2e2dc0eeee220e7d95bb9. 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/TCACY1776266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024193a1a26116ec8c01fee1ffe5c12a140173a6e40a5e88d334ded2af1d9680. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/TCACY1776268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f73b88af9eb46e13685bb049dcf3aa326133e23a501ad959a3ab332ba82d72. 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/TCACY1776270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f0a8bca764c62cd796df820adac6a1d842912d08acfacdd4bde3250e2de648. 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/TCACY1776272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8710a5788d39d5dba6f8021ee9fbdff47a51f7c2ea5b4940883cbae4dfaafe64. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCACY1776276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b45c22a97cb989b65eb0abeeb02146761bd38c9e55a3de66c2306d477eb7ae2. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TCACY1776559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f6b44b1acd16e1478e26e6994571cb70899a05ceddefcb39e6d3ffc109a3d1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCACY1776602.
O Me Quieren o Me Odian (feat. Darkiel, Jon Z, Carmarie & Jhonny Beltran)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3087631656320f774343bfdac5f5b4eb15aeed67f2cdd0c0b4c3407e3f2183. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/TCACY1776618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf803d286fae144f7ef6959dea6ab513a7ce6b9f9f0959daa0c7c38d2802e9405. 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/TCACY1776626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886134ea10e14d2b86a569e5ee5b00da80fb4d9b263cd8412338d9161a22f09e. 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/USHM82111761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2858d7fee068d9834392cdcd1eb517678be9f3dd1de58521f45e598fac19032d. 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/QZK6K2457448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c13adea5ece05123f2372985dd4e2a322953496ca180a786de1d66e9bdf4a7c. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZHN51903888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd5c47408df11f01481fe377193d66ec7a6fb12b422ee873de15f4214ef9961. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZHN62279594.
Desde Que Brillo (feat. Valdo El Leopardo, Genio El Mutante, Lyan El Palabreal & Chino El Asesino)
Me Quita to (feat. Polakan & Chino El Asesino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf05214284d6bd916a565932829d7a19d301b53ad8618d61c58bca5952e0bfd. 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/QZNWQ2584105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3d222c11c029760a45b34ab979171f6b71fc70baa6024782799b4975b479ff. 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/FRX452524542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185716496e4d4f41a4d78823ddd864939fa3260b77f04c27b2af04b806d77294. 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/USHM81930321.