RDO may stand for: Radom Airport, Poland, IATA code Radio Dom Ostankino, Russian broadcaster and member of the European Broadcasting Union Ranidel de Ocampo (born 1981), Filipino basketball player
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf638169f80d0cce8d00f8c323084160cc60d628ddcd683539cdb0dce58086901. 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/3ea9beac-8292-4e61-a491-0d064c4095ca.json and https://artists.proofprofile.net/proofs/artist/3ea9beac-8292-4e61-a491-0d064c4095ca.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af13d81dc2a9ab7a940d3f72fdd66e31a547780093f950dcc5af4286c826d83. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZTVM2290361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4131d653aa97c68fd5ecb0f2fb2fa374bbbfd07bf9608604dd491844c00652db. 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/QZTVM2290362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf02eefff3812d73b4b92e42f6dd55317c05d0b7575033439e95bc51a955f261. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/QZTVM2290363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd15bf7c3ec40b422b84b869db67256d48a54812b57198297de86dd092e42f3. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZTVM2290364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9f8165a18a28c0b7bae0edf6250cf4f7a7fbacdd2079eabb6e2f1008bdceed. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZTVM2290365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dad482daa2b91e8ab9fd13c2fcdd2387411d79e3b18988eafd56e1fb0d907c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTVM2290366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822c9b36b7202cb92c924f77d9c965e89d3459d51e6a946827f2a35ed562416f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTVM2290367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651cae222f60881f3fee31e423b55f27e16efcd8a2a70d5065ba25fdaa186f58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZTVM2290368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6083499468df8db38f67f70f1eabe1046772acd69be7574ba0c2e62bb5e56013. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZTVM2290369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33bbb108546bd8026a237b521031e908fe4628b2f968088dda2f249a095c9d7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZTVM2290370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e570369269e80ad6b37baf8cee755c04e597498f40bc3f7b6bec60a99c60edb. 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/QZNJX2493208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c0660f07bf57a8dcb16a937398b766c14d18b736a195d6a28134803a1fee26. 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/ARIXB2401533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f97f4bdf5b13c32fea601e0c305bf1275c63559d23f2c635538bf67ad54b636. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US7VG2413010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51407206aaee353e7e7b9db022b3cf0f86d4a60437a471a4b3beb7e340cf41f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGJ2187581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dba308451e99d4a350d68f4eaeca8b073c6f6966e376f56cc4ea7589d0c3cc7. 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/USHM82052056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce88cff114f4e61eb7e8f015d9b25c406e5ed3bfbd1d471d4edabf6623e68dc2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGJ2099080.