Kings of the Sun is a 1963 DeLuxe Color film directed by J. Lee Thompson for Mirisch Productions set in Mesoamerica at the time of the conquest of Chichen Itza by Hunac Ceel. Location scenes were film
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 0xd4d1d78cb75b63b62fad0d6c1cf6ce007709c9894206205665c79d904e02e1d1. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/347f9129-d9c0-4961-8b9f-de67aa78b09b.json and https://artists.proofprofile.net/proofs/artist/347f9129-d9c0-4961-8b9f-de67aa78b09b.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 0x33f9adb00b07b92ddeb867b60925eb69df5af2e24595ee99087e68428c45dc32. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/AUMU08800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e04c38b7d27f0d0bb178e05cc3097cd00021cc59c90225a01de305e61776ee7. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:56:08Z), 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/AUMU08800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81dca2ff02318cd8e7fb9d4b8204eb4f22a4ef708429561361f343e50ba0bde. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/AUMU08800068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d397c519de3844a8f94218d3cf824213cd5a4d320f925efd6bbdef161906242. 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/AUMU08800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799a5055dd1153394e3f81338760a5787180a5d3bb381caacf93c07ad2aaca13. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AUMU08800069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ec999a4d4441bb0a419188ab1066781cb40eb64dc37d96bfef35408e1c4469. 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/AUMU08800065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee9a64af6f11fd91a80fdb6306385a16dbebf62c16652e2430a7e330376a3dd. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/AUMU08800061.