The (, or , plural: ) was a development family of single-shot man-portable anti-tank systems developed by Nazi Germany during World War II. The weapons were the first single-use light anti-tank wea
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 0x52be887414d708ab52efdc63c20f145420fb01fffcdb4e733c67174eea0507d2. 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/8fc8d33b-710e-4816-b033-2aab86825b95.json and https://artists.proofprofile.net/proofs/artist/8fc8d33b-710e-4816-b033-2aab86825b95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Suns of Perdition - Chapter III: The Astral Drain
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 0x5b5c771e029d1261b031d7a176a340773b440743823a6bbb7dcd05e7b4599ab4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEPI82208244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4e60725d285c68cc3d94edbc82843598d89f9e25a1b5c8353e774e83936d0d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEPI82208245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e3b142526778f057e6fb0492e0d4d7dc9cc3a7faece05deac02b3acdd04743. 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/DEPI82208246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96f98e91e7c9c70d322e9a215fdef1680dc7c435a0f20f7c53916893981b4d4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEPI82208247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf26dc073629911ea5550444885eb31bc4bea421b759dca0cfbd5b70eba8ed0d. 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/DEPI82208248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41450e3464cf0c884a6b405d795818c45f1a636ccea62e802ef9be6aa523c21. 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/DEPI82208249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852b9824b59b77d61125cba8fca47c0ea3a2b417b1753c71f15643bbbe82dccc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEPI82208250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641b3e515d655ef3dcc54aeaa58825a0c6debcb9ba8558871a071a91c1a242ea. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEPI82208251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac8e3970ac471a8c04020e3b4e28072cd8645e5f963e5dd08a758220c6c4405. 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/DEPI82208252.
The Suns of Perdition - Chapter II: Render Unto Eden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e78dd6ba3d75be120447c5c556ddb87bee20505d2969623862411d83e9c549e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P2031585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bedbeddd6bcc6f7aaebb35591a78f28490d7a39b69deea6ed1f2298183af8d5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2010243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e91acc97913c5e62167ad11e51b3ec1f7f6e50afd21db39fad4adecef75bc13. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA2P2031586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4aa0c38ce2a0667ab1c336d61a193edcaf4f84e02eb0aac6f0c28f7f65462e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2025508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982b489b7ccc32e691073d62cc2a4b941157061657c1aefb2695d5c1c97a8d16. 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/USA2P2031587.
The Suns of Perdition - Chapter I: War, Horrid War
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fccd3803c95d9c6762895039bedc5dd7b395034d0094ceac323adf101d40c2. 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/USA2P1932306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeae2653862da4c67e1ce8fc7921c653c68cd000ad5fee3e94cabf06e14edd4a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P1932307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd68aebd992b8fd500c3526224e1f7512d5ad3dbb53b101494ddaa88695f952. 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/USA2P1932308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c3be8077be3f08aedd639ce75c170e91a4368762f7dc5df193133a85ceb5e3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P1932309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288a8562a1dcb9c6104db7ac5e1e9ae85e89c76f4037d690dbb919967dc74294. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA2P1932310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ed21e4d745d51bef8309b7b3e0766c3e543e5df39e96f7c2fe7adaf40f99e2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CAI370813152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa138891f0a53088109308fa93a54bae6488b39bfb566ae0a8b71da134caa0a05. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CAI370813153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd23b654d1027a36c34490cb6df85cf792e8297095b60a336d83589f0dc10899. 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/CAI370813155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5271440a51797e8260a8ef842dc53e2fbd26e54127b7a1ed040ecb498c47e7e. 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/CAI370813156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ea7de67867e79bb66387b47185a7731fb3fef9040cbe5abe1266a8f686469d. 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/CAI370813160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde3ab4db6a77c3ea6a82c57c628d6e69ad807d80da789fa8a85366ae7635164. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEPI82439926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d8d4dfbb7791c6f46e2694a15b15f23932df70595719fa8ae596c3b925448b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPI82439924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d8d4dfbb7791c6f46e2694a15b15f23932df70595719fa8ae596c3b925448b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEPI82439924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852b9824b59b77d61125cba8fca47c0ea3a2b417b1753c71f15643bbbe82dccc. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEPI82208250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac8e3970ac471a8c04020e3b4e28072cd8645e5f963e5dd08a758220c6c4405. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEPI82208252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4aa0c38ce2a0667ab1c336d61a193edcaf4f84e02eb0aac6f0c28f7f65462e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2025508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c3be8077be3f08aedd639ce75c170e91a4368762f7dc5df193133a85ceb5e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P1932309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fccd3803c95d9c6762895039bedc5dd7b395034d0094ceac323adf101d40c2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P1932306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938c8f89367422c2ae2ca596261194cccc271f2e3717204888377fc98de72e27. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QMBZ91664321.