George Ducas ( – 31 March 1685) was the prince (voivode) of Moldavia (1665–1666, 1668–1672, 1678–1684) and the prince of Wallachia (1674–1678). He also served as the hetman of Ottoman Ukraine (1681–1
{"copyright_id":"0xa4a693ade4afed26ba2fa2e4c1ef5cacd681cc4dff85126d0c4f74726a865fee","name":"George Ducas","registered_at":"2026-06-12T06:54:11Z","symbol":"NIM0220377","token_address":"0xbd8f1dcc91a4faff140c40e37acb7c772dc54afe","type":"artist","uuid":"aa64561d-1deb-45d4-946c-ef1d07c6f946"}
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 0xa4a693ade4afed26ba2fa2e4c1ef5cacd681cc4dff85126d0c4f74726a865fee. 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/aa64561d-1deb-45d4-946c-ef1d07c6f946.json and https://artists.proofprofile.net/proofs/artist/aa64561d-1deb-45d4-946c-ef1d07c6f946.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 0xc9b4d22653ce3f29f05d3b11afe08b7c1bc6b5d90979498d3cf70fcece034eb0. 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/USCN19400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f86a303ae346eafff527dec0d97dc7adf057ea4075c6b1188572dd2811beaf. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/USCN10701517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3de81824c104fe3e2eaea58cb630ddb647c58816cf604a75690c0b61e6085a5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USCN10701522.
Gimme Me Back My Honky Tonk (feat. Roger Creager & Kyle Park)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcd517725547fb0a5524cd49dd9ab441114cb96a58ccb9c104d07bf76c8e045. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USA2P1953262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15b405f72c8cbeebe99d9b85d6e4cebc53ac4fdab8e347ce2085114d31e5b8e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/QZEQU2070380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407eef7ee3702a53d7fadae6f5b4e24c71e645ae6067a466185bf4d72ad9118b. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/USA2P2349609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e44fac70afff3020dd74f1acee32d958003cee111553e24caf5b6b64c4e9d47. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USA2P2360893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265fe3c560ce10e0a23a2fbd41f170df04ed2d4f4fadea3f407705686cd994ed. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USA2P2362522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407eef7ee3702a53d7fadae6f5b4e24c71e645ae6067a466185bf4d72ad9118b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USA2P2349609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4087626a8fd0cc9a3265049b531c71736199a13fb9b87e4d2da5ba318092df67. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA2P2362523.