Alfons Zitterbacke is an East German film. It was released in 1966. External links Category:1966 films Category:East German films Category:1966 German-language films Category:German children's fil
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 0xe9669c7c780eb3f643f1b2b669d6ec7e8edaa96685052c1ef0b057fb797a2a7e. Chain 2 (Bitcoin): anchored in block 953662 (2026-06-14T17:28:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/568c1a33-473b-4815-b88c-3905b2bf605a.json and https://artists.proofprofile.net/proofs/artist/568c1a33-473b-4815-b88c-3905b2bf605a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alfons Zitterbacke - Endlich Klassenfahrt!
Kapitel 1.1 - Alfons Zitterbacke - Endlich Klassenfahrt!
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 0x1daabf90d25ee39405687afe4c0984570625e5282af6b44273a24c04b2e235be. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEWI50543248.
Kapitel 1.2 - Alfons Zitterbacke - Endlich Klassenfahrt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb020d8ccf599d636ed72b9788aac528f339d8ba71b3d03ff3439c2e40d02c32d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEWI50543249.
Kapitel 2.4 - Alfons Zitterbacke - Endlich Klassenfahrt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6627a13b762853fd39cfb73cf3a9bed7ef28fb3c5322ab2c70e3763ec7749cd3. 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/DEWI50543254.
Kapitel 3.2 - Alfons Zitterbacke - Endlich Klassenfahrt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ac96592b55515b8e700b5f61fdc859afbfaaceaa8e50a0dec32394be43b18c. 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/DEWI50543256.
Kapitel 3.3 - Alfons Zitterbacke - Endlich Klassenfahrt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5932a69f181d413e702c585facac87d28204bcffe53b351a081cb25e0e476f6b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEWI50543257.
Kapitel 3.4 - Alfons Zitterbacke - Endlich Klassenfahrt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18289349c981fe541144690ef95a4e39543fcd3f3569975a4d4574fd7f1015b8. 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/DEWI50543258.
Kapitel 3.5 - Alfons Zitterbacke - Endlich Klassenfahrt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740fe11c86b5a379a08ba5eb9f90e6f7096ac50beab94ca429f7cb156b37f1d8. 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/DEWI50543259.
Kapitel 3.6 & Kapitel 4.1 - Alfons Zitterbacke - Endlich Klassenfahrt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098cff308be994f52c375e7ce1610b7ad574bb70daddce01e71f1cca19ca519a. 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/DEWI50543260.
Kapitel 4.2 - Alfons Zitterbacke - Endlich Klassenfahrt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68ead3c97bb219a605bf5a53ad4a5a93908ff23a8cd39ed88108ba67fd53703. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEWI50543261.