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 0xcda1cd1b0be86537c4bf842ca1389c4c09cd5b69e106728bd4977d4cc0978dcf. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d29ba9d-3d57-4dd9-bdc3-64d2aa88bcb2.json and https://artists.proofprofile.net/proofs/artist/2d29ba9d-3d57-4dd9-bdc3-64d2aa88bcb2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juan Ignacio / Tipo Tren / El 08 (En Vivo)
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 0xcd523e1688500f0b30c1a08dffe864cb0131dba4c03989b24ffb3034fad41373. 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/QZRP52234484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27f82ee92c1ebe9b788f463a14d279a7df44f3d10234d0e99e17466a1133197. 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/QZRP52234488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c945145dd3986e40aab4ccdb8854ab56011e2fde5215240c23fe39aa09c893. 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/QZRP52234491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e43fda6718412c7e7c13ba2743be6db5b2046c5ada483c46e707828efac0ce9. Chain 2 (Bitcoin): anchored in block 957244 (2026-07-09T01:44:02Z), 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/QZRP52234492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe7e4a01339aa3d9f3cb46ee8ceef9d8132ce031f36d32a7146f7d2ecf18511. 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/QZRP52234483.
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 0x71c383b4e4c45cc7afdc3f6687e40dce82bbfa747481c5c4b5ce3fac1b38409f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZRP52234482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28830dfddfac8630c8e3159ba12093067afae922e82abc71d815a9fcfa63218. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZRP52234485.
Mas Que Tu Amigo / Viva El Amor (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01034d188ea1b4c9ac08a0538306636289d91160acd974f12c264e858469a58. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZRP52234487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae677a2fa97f8e465a257a812ac876b2f7087c4d5adecff802c468624f580333. 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/QZRP52234489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47aa10f05e1c6175f3de7cd2893b7f371bd9b3f7970890f98defc4a1b7df884. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZRP52234490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929972dbbbc5870e72417ba72070a9344a1196282dbafe72fc4f13cdb683e9e3. 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/QZES62457892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce8708ee8b9f383b5766870c41ba3aaed9b285f8709c22a57ed3930ffe919cd. 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/QZES62457893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3d1dc4336a24504689cec3f9c037fe49aed9bb8855de53ce3b5b004483c52d. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZES62457895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446d4800cc45513af2e09eaac88f4fda0192f8ade220a232667b53e701bd3ccb. 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/QZES62457891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa062611726c502581f0a8f9777b30d5b0a5c8047844c21e6812651eae41f22af. 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/QZES62457894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1de47fa3c94ae890f327531199b48f9e7629a7385ca73fa80fc95f49af1dfc. 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/QZWFK2333169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79fd6a5f7f0f6b8d23fab3c8b7165b7f62c1470d9957e58a00c6beff6cdc0e3. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZWFK2333168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed23139cfe2200553a602076e04f45076957fcbcc351eeb31403f6859dcd738. 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/QZTAX2305936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9a3a7a5d872061e1f65ca19a2fc9cb898520f2e734868be32c52e569c18de2. 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/QZK6K2351557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb602feb92e91d9daeb72369b7fdaf7eecf30fca293a6c7df381ca6890bbb362. 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/QZK6K2351559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e7f004adde818e47cd9b783bcd102cac31b15c2dd2711682336a2407f06d86. 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/QZK6K2351560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfbc6a2c4598ab5f031f9dd6ef8a1c46172bea7094fbf4aca4bf1fa8f1b82a2. 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/QZK6K2351558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02d859826543d389d5aeaea5d40b6f847400ab228466f1027f13f3129ff1abe. 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/QZK6K2351561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4917489e52d2798d0087ef0c62d1a8f4b57ea0d3ce6938fe02f94e9032fc5aa6. 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/QZHNA2291314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325171c400279b0c2c92f7d6285f8745d4cc332640e1355a6f78654b88a93f46. 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/QZDA82217076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7033e2f434126d388045733bba9c9fb06e465fd30e1f5c005b63e86f7316623e. 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/QZFYX2024923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f863f81b0ed97e4b3ebbaa1824059531a58da49fd56cf74654b4c737277e0c1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZFYX2024924.
Las Pasiones y Las Flores De Mi Amor - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7337b44d2eefcdb6d1f05d6e0e3aa9ff7232c772fe193f2ec44a9912418020. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFYX2024925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4139dc6b4279dd54e188d70e87937841b8c59878777c695af99f98c18ec4700d. 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/QZFYX2024926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a7ca72b018f7408992bd8a548f5913d5af2a26f6b92b0896c0c390257462b2. 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/QZMEQ2015275.
Pequeña Y Frágil & En el Agua Clara - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06c2a67d87511156a583409c581dbf811ca84a52c6e3fe4f98e722770564a6b. 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/QZMEQ2015276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7494a45d94545bdf7cfc4e8f087a7789352b7cff509adfd5397f9e30f2e413e8. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZMEQ2015271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383bbacdbfdb789ebd0e0905daad6d4891874bcf6f556efd2d03b32d3d05310f. 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/QZMEQ2015272.