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 0x1bf4d0d98ca464fdb93eb6b79650dec87dfc69c0c61a327555cf19f35804bdc3. 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/cb55fdb7-ec85-45be-8fee-972787616e52.json and https://artists.proofprofile.net/proofs/artist/cb55fdb7-ec85-45be-8fee-972787616e52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shorty Party (Guaratech) Dj Jorge Alexis
Dale Bogueto (Guaratech TnT Dj Jorge Alexis)
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 0x608585deeb497e2a711ab43e8ef9bf451f277f6c1febe62a56e87184c59efa52. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTBA2377499.
A Ok Ok (Thian Moreno Dj Jorge Alexis Rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5672bdd678a1e0519b66d7e3aa1c5de9bc51f10b0f6b58785db907b5001b0eaf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTBD2345525.
Bailar Contigo (Dj Jorge Alexis) [Guaracha]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d47a12f7376b1af40968db72fa6ca3373dc0d65e56b6a9e137c75cb1e2cc32. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA42417308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f587eac293537cc338d6acab3c5745350e09d91904adedfad2344e0dd424bc. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZHN42402735.
Favorito Tech #2 Dj Foxy Dj Jorge Alexis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb058ab3e9cd16f020bf36b97697de2d667be2e76af4fe54508cfedace8d6ae3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN72499744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbd572efc33f958d3c31e10cc4befb6e1fb706bc7a48750d4e4edce3073e18a. 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/QZTAT2460229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bdf6d6d7b0e1e1ca8c12720f5611bd933810080cc41c2d3c5fa1bf0193683c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZTAU2437975.
Pastillas (Guaratech Rivasff x Jorge Alexis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7476b304d0ea4bf487d0f682507307d4ba92f07364dde18e7b0de334baed5c1e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZTBB2421568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd691cadd9848ca64b8526694a1d6059fc805e7d8f054eace04c68665a51ca321. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZZ7M2484857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d8dc32770c3fa9ae2412ff2d1a5b23c483fe15f6a3829fd2d83d57f148a970. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZZ7V2480836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9472b3fca725ad61db4b5e7b295e79e4830a5b50b0f32d3fa6a9f638b0180a66. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZTB22504447.
Puro Venga Venga (RivaSof x Fanny Plata)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a88d22c5ac2144426c343aec23864ddb505cab371666e35cc9e0c8d91cbf223. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7K2587090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8f467c7e8364658ce523201ccee56aa3111320f1dd918d22872c058eecd6d3. 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/QT5M62554662.