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 0x50dbd06e77cd58c637174690ae927ae14985862a6a0be03b2de64c3596692f72. 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/da09d15b-a073-401b-8dbb-ddaf892d3a35.json and https://artists.proofprofile.net/proofs/artist/da09d15b-a073-401b-8dbb-ddaf892d3a35.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a444a459e1d9be5ff7844c5f95661e915383f59ba7597155e48e32ab10294c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM4TW2438054.
LA CORRUPCIÓN 2 (with El Chacal & Yakarta)
OTRO PALITO (with Dany Ome & Kevincito El 13)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a32661d62ed740eac359c264d4f9241b1ecdc697e9af760a6f1603e9929cc44. 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/QZWDW2526256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03fc8e93a229aef043ffa7dba107b9a7fc3af0291f66a4108d7b48c1492dec9. 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/QZWDW2526262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed4912f28b0d5c93be915aa39e339e9da373c676b2a0afcfab7aca3c9a8e0cc. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWDW2526263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ceea5bcdee9ca6623b807c5a93110aa4a751b704c9e9a26069386043dceadb. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QZWDW2526265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5124556dfb1d5f3cf44cd7eb807c020d466fbe1164cfddc0d465ef263b269df. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:24:20Z), 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/QZWDW2526242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50458e2c75b2d92d61bc52664aa5503e50c9d4e6b857d9599b4dcee307f80fa1. 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/QZYFZ2479303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab5c4a2455b04c39f73469f96e0627ac2600d7f5cae2a1e7d67eb436c67fab1. 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/QZYFZ2479305.
LOS NIKE (with Seikan Anikila, El Chulo) - REMIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748730d89f4b3ff75fc2bcbac0840fe35a77de26515a721a9a41bc859c7cccd7. 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/QZYFZ2479306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba071a6a6af7bad8b653e3f45ffc5c1e28e31b6bf812903a01a238d1883f4a36. 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/QZYFZ2479307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9c1f6e1aba47e4828c32231a50abe64990aa1c9a0a366be2b32d68208361e8. 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/QZYFZ2479308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe31d20d55a5f05651feef69cf2f9d36bb8c15069ef65f476ece2adbc78a0a1a. 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/QZYFZ2461346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e4b8dd09c94d8b0c115c914a283114e6658aa8f5011b001087d379be0cb299. 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/QZZ662312762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d0493affef371b60ce95f18e258e80e2ba03e8998f0400e2d60d5786b6d388. 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/QZNJZ2312937.