thumb|250px|An early naval cannon, which is allowed to roll backwards slightly when fired, and therefore must be tethered with strong ropes Recoil (often called knockback, kickback or simply kick) is
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 0xb2a5f081ddf5a6f7e1efff304497e2cee84b1929cb7aa2156d62073c833bdfeb. 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/e5331345-ae49-496f-a245-c3248c2d0c82.json and https://artists.proofprofile.net/proofs/artist/e5331345-ae49-496f-a245-c3248c2d0c82.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 0x9030afe48ea3cffd6cfb4976071b9ca083abbaef02fe4d635c70ec09cd5d9095. 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/GBAJH0502565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd20ebebbb1feed71d680acd4cc92c23d61c16d3a72f2958f957b2dbabaf1c9e. 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/GBAJH0502566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a65f1d0792cce4b07af053fb29ee844b890be8ecd6379a87becebb0e0ce35c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USWB10202460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1564f2d35998be0a4ffba1c2f654829998e407b452ffb5484c24b1f6b15a69. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USWB10202463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9342c46c2856a3328831291fa28c1b17cd8dcffb5e7a1be1cef25859e64d1f5c. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:49:31Z), 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/USWB10202465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535f6d1389ff16279aae68ea9ce76b44deb471136665fa362afa54f866abed0e. 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/GBAJH0502236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83830e3445d6df35e17044efbe07cc0577193423b11d8000449289fd2050e94d. 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/GBAJH0602594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b6a3d9ff50aa19dfd7af25f1824e62e250d7b348c669cc7ab3d9b1eaf5e075. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBAJH0602595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe757fe7a2992c81b5b490a6ab5ef3cd34bd81ee03e452da59f33d1c70f539e17. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBAJH0602597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1104b9548adbee5177099218856b0618700e4f12368ce9d95f8be7bac34752d5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBAJH9700211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c99298ef39414dd124b676ca61ce472198032b32aef662fc5ea2e405d51df5. 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/GBAJH9700212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf495271ac12e76e25e558f4622e12c1b56b151b43752c2a7b993f6b2c2ebe4c9. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBAJH9700213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13fdbac62d3181372bb4350dc8c524151dcda9c53b16df5acda3a18a7d6a116. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GBAJH9700214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe598d594dc7f49fcef53f6fabfd05f76b3f4994c20c73c20d275c4fed28b98b0. 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/GBAJH9700216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd65a4dbe73a6b079fe82f7f87c8f9166d310afe7035ef12f890c6052156be7. 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/GBAJH9700219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1104b9548adbee5177099218856b0618700e4f12368ce9d95f8be7bac34752d5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBAJH9700211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c99298ef39414dd124b676ca61ce472198032b32aef662fc5ea2e405d51df5. 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/GBAJH9700212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00561ed2ec6c8bb76146b1dd160d8f69e5e4aef9a0c491aa8860c80296390047. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:21:47Z), 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/GBAJH9900457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47e94a21c4cb2012572e68615114fd25538b8b33254e714c30ab3bae7fc43ae. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:51:12Z), 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/GBAJH9900458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ccee6ecf88f474af70505d40c375d0f6a3381585d6b7fd0b3061a1aceb2b65. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/GBAJH9900459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cfabb493bfa51236b329d2200911526f2d9afbf1644de0a1a4b1fe4ef7e2de. 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/GBAJH9900461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0586d23276b674d91124e33089a7ad4dea6612e3c2ef434adec9cb70a40930. 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/GBAJH9900455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5454008a59b6963a0e928ad6e90e721c6486e1672bffeed03156a7a3c3175c3. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:10:31Z), 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/GBAJH0700274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eeafd867e7357d3f5f780a90a9f9d7e0f290af7691cec43c1bdf5cf8932a4e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:56:37Z), 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/GBAJH0900521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97a9637d882c025c40b11cdc3f52af62aac03cf43073040fe2d01436928cdbd. 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/GBAJH0900529.
Recoil: Selected (Expanded Edition) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe9d804602eb01dcfefe98a90ee6a85781214b4ccb5e0e54934736cbd246444. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBFFA1200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1aa9af733e9d208a1e9f70790bff22033a296d8cb84db4824cedf8e62e296b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBFFA1200116.