Orbius was a Roman general, who defeated the supporters of Mithridates VI (reigned 120–63 BC) at Delos. The battle was part of the Mithridatic Wars (88 – 63 BC). Battle of Delos He heard that the A
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 0x49d723da6eba2a10d1045c779e4a1cd4a4a06206c14beaae5e04e433644829f8. 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/fcd0af91-cc07-4914-b388-0ddaf8f6895e.json and https://artists.proofprofile.net/proofs/artist/fcd0af91-cc07-4914-b388-0ddaf8f6895e.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 0xd782acbf2aef99ae19ed9972e090d0688adbca8b0de52fa0dc5970aa998a8dac. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB72303015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1207f0cbe2977891ee3f55b7918965003673de6370bd8d02a02d64882d8c60c6. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZTBB2353001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21ae54855e5254c313609eb3b98443b97479127123a5bbcddada68c185966fa. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZFZ32442433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56e74d092d0ac83b6da4f8dc6016b04a7266fa83ecf24a0149f181f134732ab. 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/QZNWR2417546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa699001873f48a3f7cef2777b867931d7eda9438a84a93a39c336d9118738d04. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWX2402457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc78716056224dd4bee208434d8b4ef29fc3d9a262aaa5bcb4b7b9c9d7d0091b. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:39:09Z), 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/QZTB52434817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb5d4e96b81d9b6ce9f0e7858d1c0a50a83d3d399c44200b02de5eea081f540. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:51:21Z), 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/QZWFH2487838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af229b9f2937bfc059809cb74be4c20a889372c85263db0cf8fbeb40910df76. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ7K2483642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde5a9862ea1387d6c0430c6f85ded43fe5a7e538b04e2fa7ab6ae885d016c96. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QT3EX2410378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56859a66d5815b51d6c6736ab701f03c4b17bcb13cf76911e45b6d7fee95eab. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZWFU2564698.