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 0x0a204b5c8f115cc46c8bf3a26c58cd340016231485d17397a15a012e0a2b3faf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5724aa6a-eb69-47b7-bf45-66c12ed55be2.json and https://artists.proofprofile.net/proofs/artist/5724aa6a-eb69-47b7-bf45-66c12ed55be2.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 0x75c5a531346ee73b1439a633ffa5a16c478d35ba22dbe655e28de52bcd2867a4. 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/USCGH1527696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92127ec68ca5dcaddf3337f6804e46a5f092225fe8c93c8e064ef801b7192620. 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/USUYG1118443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d397b68d49c4e67d6c211559dd35f2214b975aabb0e2d50b5690ed92d447ec. 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/USUYG1237062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2652a4a1cb9bf8a6e6e6de4826d116ae2cb3f1966f8567d521d7b5d50ef71bc2. 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/USUYG1237065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dbc275c042e8ac7e6bb09d36bd7cafa7ddda0f7825e03fb725cbfd4d1e0dbb. 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/USUYG1275306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd2e0b94cf11cab22420264dd32a6742a954e4d5bdf4ae785838cf93a947b23. 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/USUYG1316932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edb2e32bb3e69d2fc77a6d05a20f51f73b2902b119b17b4f15b7cc448e7f4fc. 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/USUYG1316934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7387d39ac28e68c5bdd5c3f3c4e0124b2cce2496fd2c9ed1d602236220253432. 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/USUYG1316935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14a979ac7e632ee5807c040470de4034a19f4517c1b7a74f2448dfe4b11079e. 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/USUYG1316936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75012fb473d9ca904bb09e067de4447854be0157d46b82df8c7f98a8a1ff125e. 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/USUYG1316939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e0a04aa490c4a6c09e47df1ab152becbfa25520855a59bdfefb42d7f71a0f5. 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/USUYG1316940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb737c5bd65199383505cac4726d6df9fc20a73efa777d8fc3e3f2ba87b5a6fd9. 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/USUYG1316941.
Whole Gang (feat. Babyface Ray, HBK, Icewear Vezzo, Overlord Scooch & Lil Perry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bede3c0efee4e6a285a8b736a0bbbf5d8935f5dd8cc35589177e01b2ca9847f. 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/USUYG1316942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9237d70c021c3395e1803417896e5e1f222e19380b1ac8259ba75cafaf719f28. 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/USUYG1331436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2216dffd0db84456cca1c9b6006c1a9060800c9e41fb1ecc1e8fa543c113b8d3. 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/USUYG1390845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfeadf3e7460660caebc9ce3c042fa70ca260ccff27f215286546b3acecac6c. 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/USUYG1390846.
Having Thangs (feat. Babyface Ray & Smitty Soul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23958eb9b26493de79de62aa7e5b7bc91b541e536791efa00956c9a9d315f0b. 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/USUYG1390847.
Closer 2 The Plug (feat. Mack Nickels & Cashout Calhoun)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b73bcbcb4f7b954d8027325a81e5b46326a7e3e2313a88757e2e9a169df66f. 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/USUYG1390851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9bd6805d98964c3c236f62a0d79b2d3bd433dbc9851da853675bbc6e4682a5. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/USUYG1550748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012570aa502a05d16df8a55731b2bcff187c007a61532da1e42eee64588aa5c3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAER2081839.
Loyal to the Game (feat. Payroll Giovanni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02303a88003b92318fffa41e26c2d5443a0cea272bd04226197b84122874a22. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUYG1243800.