In Fear is a 2013 British psychological horror film directed and written by Jeremy Lovering. The film premiered on 20 January 2013 at the Sundance Film Festival. It stars Iain De Caestecker and Alice
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 0x3c6902a12c9b25fb72423e32b8afc86f6f168339ae985cfdc1db57e46c96cdaf. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f4666c4-8b13-44dc-979a-dde63ca9cec7.json and https://artists.proofprofile.net/proofs/artist/3f4666c4-8b13-44dc-979a-dde63ca9cec7.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 0xd8b5b2f067bf71e507a36db97700c79b92240c0974bb2a7961beee375b50a9d3. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/UK9AV2202173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffffc0f0403a2c24eb1e5f135091e5bbfda2dab3f9a38a92fc0f5bfb97e4d8a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UK9AV2201904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b6faeb2e16a8d439b1caf411233e66dc8d0e0622cf1edb7a2ca3e042a354f0. 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/UK9AV2201970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70713d7b6d4ac822639856997725f68d25f9c55eafecc85675066d992c4f84d. 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/UK9AV2202135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf13d496fed0f7b191f47d25f5bf0bacfbff87278ed16294d4b5e50dccd2de. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/UK9AV2300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ce09357b17ba51177a7d0087eea7a01cb3588f2562987bebef10402cc03e48. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UK9AV2300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eeaf98a32db7d564fa1f80765ad624505b8c073808229cc854d795ba9f44ecd. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/UK9AV2202274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4c9fc0d20da8ef837f476b4d9f7aa71449ec6e7eee50ed860f469aac1cb6e8. 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/UK9AV2300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f1232005a6508a2d03805ec8a5b1765cdf90c60a37ec3e27a1a571962fae40. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UK9AV2300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707636d03c44a847fe97279592e02ddf29ca0db95df8acefec9cc06fea18d79d. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/UK9AV2201721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79f2d5ede0f9480e0afed70c905555178982b46f155f08d642e9b6ad222980d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/UK9AV2202159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86d0566dda19396cac82ff787cc689c2cb1867a174e3ed0ee736c77626993ea. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/UK9AV2201840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61020b1d9b306210904034295c8199b05eccf06436216efd04e92bcc995d6244. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/UK9AV2300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d46683172d30549dab469de37d49672f6c4b618b6b06ceecf11007c506502ad. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZHNA2186994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58c82a81fc25a4a457e3f0967fac421bd233f96f07a51ffaf6605778173c477. 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/QZK6Q2072399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae15a923693de3dac45192b9dcfe7c524d1fcbd90572d7229e3cbc6c623de76b. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QZHN32023783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c8f4c5b480560d61ebfd620ddd09cff701406380f259d01925711495d1cbe. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAEC1908738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fab23998793f2964e70c2a49f670201076889fac29d1e79e253396bb08d852. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TCAEC1908746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288d2b31af359b2c173a84edb0f8b904a17b6675ba3bbb6cec637031c6398f2c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAEC1908804.