Starz (stylized in all caps as STARZ; pronounced "stars") is an American pay-TV network owned by Starz Entertainment, and is the flagship property of Starz Inc. Launched on February 1, 1994 as a multi
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 0x5d144ac93bcce835c80d1c855cf797a05e8b4d5659c7fbfa2dccce00ed088fef. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/430d99c0-84be-46e1-a59a-c9dacd2472dd.json and https://artists.proofprofile.net/proofs/artist/430d99c0-84be-46e1-a59a-c9dacd2472dd.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 0x3ab32df2b6f562dfa8294c9f9f7da5be799446dc842e5625f369990c210b66c3. 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/USCA27600216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729ce8c474a9109eb455bc56729b2698a1f2d61c5030aa778f5731e759905fb0. 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/USCA27600217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f872d6bbb871999d332bd873e8f3c6a23843e2dcad12c53b31bf629feb9784. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:11:24Z), 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/USCA27600220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f04553a58360c32bc3c2cce87a274503fe467ec3c24316b2778ecf34eb1625. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USCA27600222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79047a4463aa2b1db864fb763cccf8b678172ce5eb6610bb2c5235f3b29b9036. 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/USCA27600224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996c3ee105be263b83920c9b0a50035b8a0efde3c58cc5c734b726d1174852e6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:11:14Z), 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/USCA27700227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f03a3a66f0bd7f0c77ffd6767444d5be3262c04b6d727dc1f2e4cadc9f9c83c. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:28:35Z), 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/USCA27700224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984e1c09e36184050a148590f2e424b3616a7c18865c8af05b9808c30e998a67. 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/USCA27700225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131d6522e3283e890499a342a9b028f95d83ee8f52d50ee9d1c26ae45a126fe1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T14:06:56Z), 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/USCA27700228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e44acafd69d6846e8b8c751807a15f2faf16ea98c96e05d7a2568b502e3e4d. 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/USCA27700229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5011b56d4f8e952f0c4cff35ab005b945a8693934a0ad8fe9432fdf13fd012. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCA27800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae1c5aaab6baeab5e989001030d4550930d1f5181f36521ec74ce903c10852d. 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/USCA27800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b77af3b1036d212f0a242c38e6d13c774785bb850ab2959b5902172a3073f4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCA27800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d3d37612423e8f0a404f20a4fc28ca934f89e957f4a2f9ea63877183dc9742. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCA27800135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb011708bd289530ba9d3a036d9607ba52f44edf46237ea9d0d3ab1e36d8524bb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCA27800136.