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 0x352ee04b6fcf30502f449ec80444b8607b227e3846ba6c398921f97568b1f81b. 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/0eb84bb4-33b1-4dc6-b3d0-c015a5bc8049.json and https://artists.proofprofile.net/proofs/artist/0eb84bb4-33b1-4dc6-b3d0-c015a5bc8049.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bend It Ova Bak It Up (feat. Magnolia Chop)
I Really Want U (feat. Partners n Crime)
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 0x0e811872ba7f4c1921d68def977359f74346739921fb390f8b61dc22ed211876. 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/TCABT1401436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56de77dfb889a431c3aeb2b4e64e2a8a68e4e3c7a0ea4365ac66297ac1cb3546. 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/TCABU1426661.
Let Me Find out, Pt. 2 (Remix) [feat. Snoop Dogg & Juvenile]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313d8856d0d1ea1ac6044c3c016f88ed37444e71a509530432e853dbd30e2477. 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/TCACC1435188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50deea13eba2917f85dc467ca88dab9460190ef6649a01d21ab36006f0bc2d67. 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/TCACC1435253.
Make It Wobble (feat. da Goons & Calliope Var)
Let Me Find out, Part. 2 (Maxi Single Special)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3872185ca28aaa4596a1116cc2a181227b313813041c207b8271e96c21c9ea2f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCACH1510152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe026170d42264a99309f9ef4ca9cdd2b5c315fd15a76ecddc79610f3ec187f. 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/QZTKB2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22cd6c0ca3f5b3170b3bf3c5e1abd26c0a27a965d28bfea8756268996f0b30e. 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/USCGH1926199.
I Wanna Be Where You Are (Instrumental) [feat. Big Choo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86679b8855b1e52bb49e0db7cfdc330849739a818883a868d0532d7fb16e1e47. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/USCGJ1549850.