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 0x167e8196928a86e5052059efd0c16e5444052ac297258335f01cda797bbe060c. 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/80ce2640-51d8-4953-8cbb-21b9b8379274.json and https://artists.proofprofile.net/proofs/artist/80ce2640-51d8-4953-8cbb-21b9b8379274.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 0x7a2a211b2e56dd8cfb4e0cb9f215e897ab5abee79566c26d2a150c4c2161d979. 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/FRX202166626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2c9977284385327eb301e47bb6a72961b6b02d9030b39247c561f84f660e23. 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/FRX202166628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd59da0dfddf2fdaf6b183da468362f701f0c3e717d1218b4eedd48a94021e35. 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/FRX202166630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564731e725af9250238f83e584add0b126a8287d88e22261b8f02da2aa5474f4. 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/FRX762288857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c784081c6de1f4376a2cd39344495b98c376cddf72de7c30e8e0042489aa825. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:29:33Z), 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/FRX872235977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e311da80c1ba3e4157790d528b52c08476ed4e535eecb47063e98b5c0ae72e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DGA052312624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48a0570cb3a81d90869ca658bf62b1a673f8dd56037dc949ca4fa020af3f50c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DGA052312626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7d84c0ae05a53e4dc225cff79cdb193324a0b2321e915213fa4583c55098c5. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DGA052312627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e0c5f39e99d76e459d657b310ac5e14812fe97f0089e72dd5de6f167ef51c7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DGA052312631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334f61b457bbd821039cd8f937ef248e62fed3337590725e8caba05982b74a71. 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/DGA0P2374525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2892411653180ee217cc3e5521dd1ee8d22809f3acf05244c8adaea8031cd96. 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/QM7282448775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2892411653180ee217cc3e5521dd1ee8d22809f3acf05244c8adaea8031cd96. 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/QM7282448775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f64e414eed4b8dc46e2abc93969e8f625ff0d1c5de95d6a71f33753ff67391. 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/QMBZ92485508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451c1c3f88927025618ef7c24234374e3e0d8bc6f5e1896e505cdc774f21517e. 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/QMBZ92485517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008ef3344239a5189ef29c974970922f4d3d0357af6eb61f5f7cb9986001f1a7. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QMFMF2467635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb490d25c4594b92a71a876f3687198820515db1c67520d3be508e44577e3d60. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:03:54Z), 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/QMBZ92557238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54668ff4363e256691af2208d01cb30cd84826a19596ca7ffd53edf3e3b257c. 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/QMDA62533514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef2cb759bcb7016a32b7df0373bbb05b36f0e5f68227b18528330e3d83261a5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QMDA62533515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042435ea41b7298ac0e01bed242baa7e32d3798e40c0e59203f129282dc949c2. 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/QMBZ92594769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480c2d711809883dc641a557a32f65953bfda19f3588e22a818953cd846c9d31. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMDA62533516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a98e0e9357dff077d554eabc105b9aefebeac8aa53f5e98040fff6cb5e96a67. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QMDA62533518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce8e6fafb1162cb062f70084a75ea5e734392f5b692676e514d5f40af1924dc. 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/ES71G2217803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2227c5f14a313292424c3564caf4c4b1f08508b52bfa9a2d97d996ad06f68145. 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/ES5702200669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdfc388e6ef334b55e7a942679eeefee8a6ed2a4d1c63fa8a8d2607fcbc86ba. 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/ES5702200670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dce9b24dd907648358c37cf2b0f5ccdeb45a59d38e432c3d34d7d55619ffe9. 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/ES5702200673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb782d6291974834ea6f87f141ccc1c27f896c7c67be83f3761ae11140cf343aa. 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/ES5702200671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded8572bf47cd6741097954216a3a76c418d2400ce86afa36ab0e65ee6409257. 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/ES5702200676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7c29d1a7d9168611f8ae199a59ce9cfe46b579a7dcc7c6078893475c2fe913. 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/ES5702200674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7734d2caf3f0fa5b77252161b1036155013439bb6513bd971bf0368b087bbf35. 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/ES5702200675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32006b7d8401606d0fcdc7171393548d63c2adc2a3510e121921753210bbc474. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QMBZ92085326.
Como si nada (feat. Fito la R, JC Reyes, JayDime)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb53b5b4fa4978e8e0f7313a0c837fd9df51ab16c87ea818c349365b7246feeb. 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/ES5152401266.
Blackberry Freestyle (feat. TRAPMALOY, Shynelevell, JayDime)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b2751992a275f7743bce4ca3a32bd8d56ec8b4418c8c2ad30b6174c582d79d. 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/ES5152401279.