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 0x97ce0af36c9ba3c9d0c07370801a8eaa72d877e95054bbd02687d31382e43abe. 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/beb7b276-c019-49b8-b750-d5df9069b737.json and https://artists.proofprofile.net/proofs/artist/beb7b276-c019-49b8-b750-d5df9069b737.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 0x59a6b845107633ff80e1f6d9aeedc9a496d3fb8e0d63137b43da292c8016bd27. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/TCADI1731929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1269f8500709a9575bc35f9822dad9c395e58d1e9e33262eae0e2480bf390a09. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTB82202014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3ee2f8f859406b2aaa8430265e7f11d893386747ca6f163532e1ecca10c15d. 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/TCAHE2333624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd920e6f2c1c0ab1b09f21a1180b3be5abc6eebf6fb13a30e2ecf70eaf1625be6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TLVEM2429543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde23fa724e51de5d9246ee69c802dc6eca507f87a6b4ffd76e2c74cebbfa379f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QT2VB2406593.
ZIP ZIP ZAP ZAP ZIP ZIP (Alien Cat meme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe176ae3bc3074c51248d72a6931e95dcc7e17bd38a33e54fc2a3dd1e1d1d4b22. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T11:33:25Z), 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/ES50A1900362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f000f8cbbb762955b880e5c087a7b4683230e0ca893b2be3314d6fcd9d9d3c. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/QZFYZ2199685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3935de2303fbef020e8fa0933ecb9c30e1baf381f290f42dcbf8992e1a5b5c6. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QT2VB2453553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c991fed9dfdaf46d17f1a184a803b9e6629d6ab48a4a8eee492dda8835be75. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZPEW2590688.