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 0xdf252827d5012b321ac2ef56ad895e682b593e7bbcfeb08285bfeead7743a91c. 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/6d3d0699-4ee4-42c5-acda-a03b150c7822.json and https://artists.proofprofile.net/proofs/artist/6d3d0699-4ee4-42c5-acda-a03b150c7822.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 0xea3ed15696f670ed90ca64a5158bedee3774ae29287ec1126eb3be31b4057549. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTL92164401.
Vayase De Ahí [with Juanka, Ceky Viciny, Pacho El Antifeka, La Insuperable, Haraca Kiko, Musicologo The Libro & Pablo Chill-E] - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14a01239a93b0ab397c1ab09c96e5cb84003ed8e0d5a1d7661f2bfd38d9e742. 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/ITF252000244.
Culo Chapa (feat. La Perversa, Quimico Ultra Mega & Haraca Kiko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1353a2aae36285f9e8b7867196d3a6e7d89c057dacf7d8c74348aef98b64022a. 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/USAT22201143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf390e853f7421d3c20b54db9add6a80f3e393125a6f38e927a8799179c75d2df. 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/QMGR32202398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731726b4253df44bbf2df8e85af84868c90cc03c8f4918e6554a12fb7c68af09. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA72135126.
BIZCOCHITO (LEORD Y HARACA KIKO REMIX) (feat. Haraca Kiko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62acd0cfcf1a2db393dcdfc3c9ed00087629c34f38e5bf7e6cac3c61a1df132a. 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/USSM12300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b15950e9591269207ea9f3ef9d3d5c2f589b92d12bc3e2a5004dda3be3070c. 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/QZS7J2269720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a43944f9c13b03d177f0ab7af7c35b654108abb462036fe54ac18aaedc33749. 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/QZQAY2143360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadf7310f142fe8bfcc046e4925c318091392dc14a6d2900c32ddb8170954e9c. 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/QZKDT2100707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ecd41be61aac08872fb04cab1a77e9045766aba87141242f8301c5aeaf92f4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJZ2362366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff380fe102b1de81e2465b822e9bc07b2eac0b518b98ad803160242fec4b0d5. 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/QM4TW2147793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea050a0260e6994e76d015adcd41bf3ab0de28134f80fe448f71fb51edb69bdc. 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/QZ5FN2250693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf62092385b0f7106478ed75d6201a53831dfc3e057cfda28292913744104973. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2016629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799f9b8090e8f9eedd3b19560895ae59bc6c4c622157568c16fb6f555fb370f5. 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/QZGLS2209850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6657b4661a95e03883578c07450d809e8b3616349102be1f6ec1b2e40aabff7f. 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/GBWUL2219529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d23e1550ebd6197d03b124a5c0ade0e468cf327f7e312ed2fdda91486e426ee. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:04:19Z), 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/USLZJ2122105.
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