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 0x5e65129741cc7eb2c5bd35d8ca6fea4b8fa0e208d4274a91fb2a53e20e104fff. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2bcf3db-ad8d-479e-866a-0780e5517a9e.json and https://artists.proofprofile.net/proofs/artist/c2bcf3db-ad8d-479e-866a-0780e5517a9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mo Problems (feat. Casper Loc, Sandman & Hitta650)
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 0x8c0cfbd914ef3c4cb8e2b3240e79029b92c63b86f06a98a2f58f0d0584dc26e6. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USCGJ2123025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc063e0d17f9969fa67605145d8656356bf673b456501ec19d9b638b0eb30833e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USCGJ2123028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2f582feb9a0b5046071d11611bc8aafe9f020f14cc6fb510fc5da6a12aa871. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/USCGJ2123029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be84ae7123d10da5d22a3c9ace10a40b31cb5367011911223e7727160e09bd2. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:44:28Z), 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/USCGJ2123036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b830589c8ef2bc2287b79142bca0a13d3954fd7cce41720bfdc082b8d8aa204. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USCGJ2123037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49cb75148ddd7895c1269973eadfb90720e606d8f9324f777c9f0d1474ab3f7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P1609376.
Summer Breeze (feat. Lil Milo, Young Rich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551f43dcf5e49071fe171390bc245735a8a09311507f1515a5c2f7c2840f2201. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P1609387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff322eefa798f060aa5e059da799a9aa556b5779562b26a430c4a16cc39a86b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USA2P1609371.
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
Bloody Ragz (feat. Cali Criminal, Lentez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795f55f0a7d394ab200cd57da43491b0ecf2cc2ff7efdef2d1e817271471869f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USA2P1609377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86dcd8acefef9268621358be703da3a22fef1e669b1759a005d1c2dbab87899. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USA2P1609380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a2c6497889f6204744ec6e51c8e50def6ea236f08b8475d5ede16172775a9d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA2P1609381.