1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x073c880ab4170be1c5250f824c395c0a948353d6a9d1836c810277cfcaef917c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/730062b2-f9ea-4716-b4cd-230afbcfc07c.json and https://artists.proofprofile.net/proofs/artist/730062b2-f9ea-4716-b4cd-230afbcfc07c.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 → block OTSBitcoinBlock must exist at that height 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 0x52f4b58dd637edcfd098056dac2bc096846dc16e22b3a7cc5fea602d62e621b5. 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/QZHN52050034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a43007468f74551e4fa6a3cfe06c35863bff79aa5637c98e39cbeae86678cd. 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/QZHN52050036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d93aac2432bc37838c8aaf39cfca9e8bddf19fdf2dead66561ee0790fb084e5. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:33:17Z), 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/USA2P2100380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc6748ad4f88fda6ca5ae013e1b3dd22cd975c27775a7badf044e997130e973. 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/USA2P2100383.
does that mean it never really happened?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd862b49ddc4e5f42b2c9776053ceb33cdeaed60019761ce62f3fc9a7a66606b4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:26:39Z), 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/USANG2296205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f291a6c4c303574b63fe927addf0add7f9fcaa337e090963b46fd1c29c96f51. 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/QM3DF2127437.