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 0x04d5a8a65df05573578b0f597f8e889853853b4ba4506cc920ab76b62986b80b. 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/1f65fec9-1651-4bea-940e-e0e19b9e1464.json and https://artists.proofprofile.net/proofs/artist/1f65fec9-1651-4bea-940e-e0e19b9e1464.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Por Las Noches (Remix) [feat. Lary Over, Lito Kirino, Juhn, Nio Garcia & Anonimus]
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 0x453bb5c3c969f4091c092b987549f00c5831100217a14e620bb751cc2db36472. 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/TCADA1792829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a686c5af5b35e80829430bad80723a6ec41c24a0b143688b75a4341fd324f5a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USLZJ2122255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c877ec392a82845dd19288962d5edf9e484791ac8af648cfe2c444d0ea9bed8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZES52090400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9a94cff597437bad8f8d9ce2c46639a1a4001b7d500436f4d11bc71d64232f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US1ST2037001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4a78ff01c947f68e19b4e7ee812285c943b5a0624ac823e1eace2fba12cc90. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/US1ST2037005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29cbe24dcec6dd14b2a06069706fdac32f522abd1dd8b67b9fb502981cc0f9e. 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/US1ST2037006.
La Que Mata (feat. Benyo El Multi, Jahzel & JP El Sinico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b1097d074afd8de3237c1629c425b04fda179fa7b920511d1632ce5251dcdb. 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/USDXS1500224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d4456ff6974d32d5346fa19245ac412134332b001ecce56a6d0db3809ea835. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/USDXS1500227.
No Hay (feat. Jahzel, Benyo & Nio Garcia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef1eea5be9587bb929ec612b1cbb6b11918baa3628be2fb4fc9d3deb48b7811. 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/USDXS1500239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7224827f7154f4425f29da22bf346703eba81495ebf34f91240f5ae32c12cf1. 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/USDXS2500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b65c21d823283670953cd9308ab53db98dd662cf02c372d7dbb7616baecb11. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USDXS2500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9962a9b3208479ff19646fbc1123427f9dbf88e5b817c0c778327d4462b8d6. 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/USDXS2500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0bbd7669c79c5e694e9055620892d693511658750768e918fde27e37ab0ddd. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USDXS2500211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2804c57493fdab4cb0a88e31e6fbf9ba6050aac4f97e077ee61b758b0907a0d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USDXS2500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccaaf32c1862dfa829b88c23d736f2c640de39ce97d04a8abdf5eccf14f2adc. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USDXS2500213.