Major Dundee is a 1965 American Western film directed by Sam Peckinpah and starring Charlton Heston, Richard Harris, Jim Hutton, and James Coburn. Written by Harry Julian Fink, the film is about a Uni
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 0xe0c23e1420d9868a551063144399da36196c26a94892ebe3fc1f3797602c1851. 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/d8467dee-73d7-4671-bd97-e5841bbd4d05.json and https://artists.proofprofile.net/proofs/artist/d8467dee-73d7-4671-bd97-e5841bbd4d05.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 0xa15f059b71d9d47776ada0642304dc012d823274f24d57a285f9ddfe98acb369. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/NLA349600237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dc7ff64c1ba4e8e2f061e0c2616e4ab66fb83bb5329fca6688136041db9be9. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/NLA349600227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2b5c858384c1aca31f9ca4879be0f11eed6f70d821347cb43249fcf292289f. 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/NLA349600232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5a0c7bdcde680569150b852aa89fecced48f8a9c02b119005d32ed126c128c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLA349700631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cfa168a0f931a1bc7ea4003378b9cc8ae3c66f6295dcdeb5912ede7fbc0be0. 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/NLA340916618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ab422ce73b81c952c8cbc6371bf4eda7d1e813a50c627ff70477b80253e770. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/NLA349800384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3667689248595c541ef2ea3cc9497518b14164d7749c9132c2ec30f01e3608e4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLA349800389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07537f0d08db1a0d19cc0ddaebc08202b7d614fdeaf4f7470f73e9072848787c. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/NLA349800394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db0e6175af1db21b52c79a94374f6cbdd2383fe385ebd4118b30af1902b74e2. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/NLA349800395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59544b5c3b5fd512b02f20e8b1460ec2cb55dd52a75099a584091a843dc9005d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLA340000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97722d1dd5d786fb6c008b28408b8abccfb877e34e5ba7ef68257e2c413d02e7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLAX70923097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d27eb3fc6970938f508b90011f7b740b08d2938959d7e8394ee75b724a8612a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLAX70923103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8842f1a0a7d412eadd78957f9be4c72f03437642558693ae324419c1328e87. 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/NLA349700634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ab422ce73b81c952c8cbc6371bf4eda7d1e813a50c627ff70477b80253e770. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/NLA349800384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820ac936563ae199317ff994336f5c57515de2de7057af9f72c65917ef99a9e3. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/NLA340400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258200f542f0f2e0ebbf6332e99e0179c23ebbdb959fae00488f8954de82d07c. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/NLA349700632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa713cfdf81997f826a1edb95d80a2815975e622e4f5bb7327b1098c2f0ac37fa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLA349800390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed8b564ee27d1a3e1db7abffaa25a0597f80a70d52e8553e4cb6c73b33bdeb6. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/NLA340000157.