is a German electro-industrial band founded in 1995 by DJ Felix and DJ Banane. Translated, der Feindflug (literally "the foe-flight") corresponds in military use to the French/English word "sortie."
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 0x1336c1e37191833e6a1af5aa7a0ce6f5eabbf423a661153a6a3441f856570520. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f061852b-7e36-4fbf-8670-7dc6b21f04d4.json and https://artists.proofprofile.net/proofs/artist/f061852b-7e36-4fbf-8670-7dc6b21f04d4.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 0x2cc5674fa8ac3dc17de80cdee69829cc893cf318f855518771edf33a64032b75. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:36:04Z), 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/DEAD20710285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0ea5af91f1c59f048d1a51fa61131cf3940e0688ed10d0b24d06ae227c4e01. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEAD20610481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6964055ad4709f38380b87b145b5e5cef0a3c5e027788bdd1ac25cb97b671bb6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEH740300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef99c0d33034537f3b8504ebc06e671f1da2de96832a8b3dee7e6f49f05fef8. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/DEH740300395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07068889f8423546aca8fdb8e882012f169e5a4360fbe8b41c911f4034cab252. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEH740300396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed4d4139f782c23a08a5a02284eb04bc4498259e0861210e866dc6900ba0685. 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/DEH740300406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f38aff6fd493da788ccb7434bd41464f9dd704ddcdac4cca6f9fbff8b0afa9. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/DEH740300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe00aa1feab6e839abae21afc9cb46a1929fe347e25bed8b0cb88877aec29e7. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:00:11Z), 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/DEH740501164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ac96584bafdf643f79c5af8f334b95e32310c042f284a3b65c2857dcdd88a5. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/DEH740501166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929f8b06e6dd17d68e72902afd5dfe8a82d2efdb8981d45a617e1f22032cc70e. 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/DEH740501167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d519cd3f8191f4fccb247e917088a8299eeb2002356a72ddf620a863d7ab15. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEH740501174.
Cause of Death: Suicide - Autointoxikations Mischung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdac32f0882429636a2d314625a1a0159a18adab087fc86472f7098a1192d766. 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/DEP510407002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0d35169c0513bc94e806780e446890e7814f75734a3823c38fa45267d6ca58. 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/DEBZ70700421.
Halloween - The Darkest Night (50 Darkwave Industrial Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cac88a56ebee3ccb6eae6bc31cfcc1e6ed55d3f879eb6ee73569e03817b2f19. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEH740501263.
Where the Wild Roses Grow - Feindflug Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2aa3640ca3e47923378e6d04a4731cea4064846162022e1e9f303c36a3a378. 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/DEHE21000004.