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 0x77a04b1c17fd279ee88d0c168cbf40741754026d74d43c7cfd9fb88d0533a295. 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/b51326a8-6fa5-4a73-adcb-0e31899d7105.json and https://artists.proofprofile.net/proofs/artist/b51326a8-6fa5-4a73-adcb-0e31899d7105.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 0xb05166f1d1f0d83e140e19023868edb45ee414fc465554927ace800505b07000. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/TCACM1609465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f296be52ccfcb9dc3c47efc8e14166187749c9aad939f389d60bf2a7227a180. 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/TCACM1609470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa542d5523a7444846a88d1c8351e6882ee18cfdc2d99708fbca572c122542212. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACM1609471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40e4db4c4debf86e7a4981844424edd449e5193d3b2029abd17642affcf5051. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TCACM1609474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0164110af764eb15ac1f78cc0e7fda58561da2bd16c2ea92177d2b67ca6e60. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCACM1609476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cefcdca6fcd5a7d4994d32d49e136b0f59c3e1aaf61334d38a7006faa296f8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCACM1609477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2782166d6eddbfa555dd41b68c7939300aba7f0027c4a730abbf157c6d27690d. 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/TCACM1609481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e809b9384965554f70cc28af1d9e9e465e06753102bc3660b4cb1bf15638b54. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/TCACR1633067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f446ed98cc4dc70af8f91ff4e6736ed39841a2fb4b0437ae579f7e9b65a9699. 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/QZFZ71990131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149dd95dddbea0224ce718a97c87749d89e7c0bafb8aa0fab3e4464c655775e1. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZFZ71990137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dce47416bb2b6b52458b7b7d6cb2f1fc946b2b59ec931c331e843617be830e1. 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/QZFZ71990141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bb34bc3f26dcf8ba1b7bdc73887d1cd9279db0401d7c4d954a4f8e7334afa1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDQH1911485.
Producción En Vivo Desde Mariscos El Velo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4559646bde6afaa63e21fb44af7370313c50e73de2a8f88bc82dc5bccc76f471. 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/QZDQH2147911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcdb67f26323d67f22f72d711c380a651068afaa4bf700b06750c7afb3f77927. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QZDQH2149122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cb04c674c06043c8221fd979bce8004a2c28948eb24c3981f38dfab93fe69e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/TCACM1618620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3ffec5f350ae4d668e1aef39327711fd4bda405ff696bdfff0eafc7af29302. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCACK1573480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928af4c62f213489c040cf8ee6624c4f47a5a421cfb0b0f0e0a15c5d624746ae. 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/TCACM1618627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82caa3a1f9c81b90d574be5197fb190761658be443dd23eb2689368781fc7acb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZDQH2155054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c97d3dac5c0b48376a2f6b09a6269d42e3c1c678688727e4e3892ffd3a3df4. 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/TCACM1618632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087dd15183601500c589befbcb6da5d6bcfb789814ce8b4da71181f964ac2848. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/TCACM1618623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e844ee31026277ed3f4fc5ee267e0eeaae0f0bbd501b61dc04721446ce89cdf. 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/TCACM1618631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99d64b27c3e5b74b62d3770796046b2560f1a590b62f093ef587c6938de1b1f. 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/TCACM1618622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413d80c0f2cf43c499b469db35d1287cf73eb0da9dad06d3acb4172765e2e75e. 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/QZDQH2250893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52074d309f0c43d02eaa0fe68360c77005ce13550b681c94f2b8fefe67c60b5. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/QZDQH2250894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa770bda21006667126035e2e837c51201d1f85ffc7282f995b153f556551c9b0. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZDQH2250897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c07c7de4546e3de13ccf4e44d8ac85c3a4b3b301a91bb2758dba9734bbd487f. 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/QZDQH2257430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f16fcdc0058f2ade2e6ae981321cc9ba0cfc0b5ca2974320a08a4fe7531fb1. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZDQH2267356.
Popurri Chiquilla: Celoso / Chiquilla / Alaska
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d46b7be7c853b017e26abab954d10fe026079075fb95402a6f4f7b5ac3a0d2d. 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/QZDQH2365328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0a51a41c80f8c7e35362bbaa34beecff361881a3fcfff37c65404da213ba1e. 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/QZDQH2383393.
La Mera Fiesta: La Chula, El Mañoso, María Salomé (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf71da296f50f9f41e0195dbcac861c9dc10f666eaa9e3621d0ed8244cc1cb54. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDQH2428220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a29d4cef57c77ece38d2ce4e6cfc3e30a042f478eef52dbe5e9ce65c51054d8. 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/QZDQH2445073.
Popurrí Báilame Chiquitita: El Botecito / Báilame / La Cumbia Del Paletero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059d3d3afc9122b82b7689fec5ba6b3544c3f203fcb2410f0e850ed5563df67c. 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/QZDQH2445075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1929676c861ed9fc09c67e5dfad4d89e611e39d7dc812e08c96d336996daaf. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZDQH2519338.
Popurrí El Mono Bailarín: El Mono Bailarín / El Baile Del Mono