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 0x08a11b436be965b2f0af588e30a7c8c7e9da571090511711367e622972c8a67a. 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/2f8b70aa-26e7-4102-9722-f7294f7b61c8.json and https://artists.proofprofile.net/proofs/artist/2f8b70aa-26e7-4102-9722-f7294f7b61c8.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 0xfaa8342dcdfb7e2075295e846347eff9f4d3e8801c8ec0b69274722ca182038b. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCABZ1465478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3711d6831c776dfc0d3bbc2b07c9a3643232459d739301fb00267ae43c764462. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACC1453709.
The Girl Everyone Knows (feat. Alex Isley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631de9edc737dad362599c8255287c31d1a1065788e9cbb3ee230b1da56ec547. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCACP1640926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da8ac2e8a3afeb5ec198fedea5e1a0875031430feb1e223e553b88a1f67161e. 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/USUYG1001593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b938a193b136494b551f8f80bd95e08c4fb9952d14391496c1d5477d839d13. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US8JA1902013.
Evil Genius (feat. Teedra Moses & JaVonté)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8752e9aa072448bd5aecaf40b6973bf46e55dcad3357af0cc8e1bb4570a2b829. 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/TCACU1631324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595d8f4a4aee0207f2cc616e52ae1d375b98e0e66115ef05fb871be29e5ef69e. 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/QM24S1705939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9eabe9da4b1c449e276df619fb6ba0c1880b05e709505d18f391a0974c6bb58. 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/QM24S1705947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd58e6255f271e87fe433741cf5eff8a26fae54dbf1fb7860970d7433642d618. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAEI1940063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88a61c8ecfad98f4205d0ddbec94ac51dd6ba40f60a73ea3472500c9c27f30f. 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/TCABG1203589.