Robert or Bob Duncan may refer to: Arts Robert Duncan (poet) (1919–1988), American poet Robert Duncan (writer) (born 1952), American music critic Robert Duncan (actor) (born 1952), British TV actor R
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 0x83a9d548e053674608fde0d254f3a238f2a9afa61263f156ef2fa454b3c35801. 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/a3efbbfb-8771-48e2-b18b-49f1f2e69014.json and https://artists.proofprofile.net/proofs/artist/a3efbbfb-8771-48e2-b18b-49f1f2e69014.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Unit (From "The Unit"/Extended Remix)
Gunfight Epiphany (From "Terriers"/Theme)
Gunfight Epiphany - From "Terriers"/Theme
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 0xaeab46cd27ff36f7db8d870c1a4d6d00c24b835a9b6acdcf04332fbda0149f45. 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/USFM91000188.
Last Resort (Original Score from the Television Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fb90dd76ef8be22ca2415d00e56b25daa3ea5b66d19296132ce08a6e159c8b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USJPL1300016.
The Entitled (Original Motion Picture Soundtrack)
The Entitled: Original Motion Picture Soundtrack
S.W.A.T. (Theme from the Television Series)
Timeless (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f8de8e827609235a97b585bc2e628601d68fd043bdcf0d5c055d8338f036e0. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/USJPL1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c385bbb4466bf0e2f21db3a1754cee474ac05b1558f9e4c476ff4767f49d73. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USJPL1800047.
The Night Agent: Season 1 (Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca2918cafd678d2638b6aae703a5c8132946e4efda2c0c05f4ff283578e2608. 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/USJPL2300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3bbe0e95a28e2b1c93891a9598c115ccb68aa2e69d2df877d868bbb273e9bb. 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/USJPL2300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93216549ddd12e86f624db97d5d06bb51552dbe61eda126c4abdc7bcb30e5d3f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USJPL2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53648ee92e9222ab971257f5b4415abee998abd77c861ccd14643e0f407cb5c. 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/USJPL2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed4a79770967cd726f2051d84b796a464a9d645a31f9b4060691b6ad1e1a249. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/USJPL2300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10725220f08f52d09ec901c73ca8e4d6dcb57fc4a6da5562f4382686418966b8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USTE10312571.