Prime Suspect is a British police procedural television series devised by Lynda La Plante. Broadcast on ITV between 1991 and 2006, it stars Helen Mirren as Jane Tennison, one of the first female Detec
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 0xf70df0396b177b7a03c439e82dd1c6fcb1f4347d21893c9ad4b3e4270fc6425a. 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/4d25802f-5257-40ab-8a25-2fd6fa7bce50.json and https://artists.proofprofile.net/proofs/artist/4d25802f-5257-40ab-8a25-2fd6fa7bce50.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 0xd5dd1983ec8a3adcfd2a76fa8dd3f8fb7bd1355aa87beb7f691502e9fb9a73f6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEMQ11800292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e74bef0ba234be0f9fd16edddb973a83ba085386c849bbf5bea4ff1eb84f3e. 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/QZES61913373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4c7eed1e22803648db93b26d5f2ea08dfd8e6adca94e4914779c55a39d74a5. 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/QZFZ42075090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d2fce76005c0367c440b2d7db9434ede6323a743ba3380d99d5f234fe1de6f. 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/QZFZ42075091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd056ab72021a2faaf2e343ce4e58756179572a27322fb4ed86420bcd36608f1c. 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/QZFYX2181891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6930abd5098d5063a54ae6dbf7567e62d906c578b8d92c8f2a5f45774bc50042. 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/QZFYX2181892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e59463053f8179beac8d5b47a3640afad53b9bd66d4ebe01ae407fcc33bbda. 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/QZFYX2181893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafb1a9b093229622d747b747ad9326222a58a605a8ca78b8daf970a768bc1dc. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZFYX2181894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126a71f36c63b91bb62ee9cd7062e7ea8b3da2474244be6fc48072c7244dac4a. 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/QZFYX2181895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92b6ef379805a30c81bbcb2377b2dcb23a5c09017c523598b07a9520691ecfe. 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/QM3DF2178338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42967882870107119c6d9de15d15b7c2fe9a4a516f077533c3540314e3c0e4ed. 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/QZTAS2353387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f93d8a6a24d0ddebccf1d474c0617bc15c117b08496d2fb2d66eb7c0a251ea. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZMEM2412007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc273cba844da4d5eeeb9000e3309eb4a907a0f3785dc33ceca682ae4a5cfa30. 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/QZZ7R2465792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e15b0bbab96936eee328516573528941bfb6db32c83d04907f355994103b6b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM3DF2129419.