Conrad "Conny" Schnitzler (17 March 1937 – 4 August 2011) was a prolific German experimental musician associated with West Germany's 1970s krautrock movement. A co-founder of West Berlin's Zodiak Free
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 0x170e3153ffe6fcb5b97325bacd6e43c5086e3299e4691121d152d066ba7fee28. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6bfb079-06b6-4da3-9f38-064d1f906fb2.json and https://artists.proofprofile.net/proofs/artist/d6bfb079-06b6-4da3-9f38-064d1f906fb2.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 0xd8adf2a51601e8a3a290903e6ebbeec360419279713a4ab496fd55ed68037c48. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:17:34Z), 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/DEG931591346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a12366b525c7f5f3eec690e3f5a1c585d5350733c78ce463f94dca8789975d. 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/DEG931390769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e55f3a6b1e8cd717fcd33b0c7d37f686a1271dc63058f80fbf808654d2db91. 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/CH9111210008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f607af0b1922c67b0b669109e240333536ca9a62fbf169e0458998c1ceff2e9. 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/UK2DR7900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe759b7f6dfe25144a8decc6a9765930777d557a2c4c3b3d7a23e9151e2f27899. 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/IT00G8105061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53385206e4f9877b8c4e0db5b7c9ee11969ed90f3a6a1a0bad5fcb447b043ce. 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/DEG931390772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff01aa22d5e6edb94273adbdf1f03bbe76084b669511a111fcb9dd928eb8b63. 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/DELI52002980.
CAS-CON II - Konzert in der Erlöserkirche, Ost-Berlin, 3.9.1986
Paracon (The Paragon Session Outtakes 1978-1979)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfd8b0c319fc409666fcd9a0c21762d225fb029966f8bd8d6e38c33e56ea7fb. 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/DELI51301129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6809db84b983077a756817f3cd8fd247f8bee14e42644936b240adde47b8894. 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/DELI51200948.
Bis die blaue Blume blüht (bureau b Edit)
Soul Jazz Records Presents Deutsche Elektronische Musik: Experimental German Rock and Electronic Music 1972-83
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6750b9b4bf56f441de6cc3845ba01de99a03974f107302b24fbf3ac952311e1f. 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/GBBCK7700157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6420b3e6a18d7fedc663ec173bfbeca72bb308bd77da20a7470ebb1715af87f6. 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/GBBCK7700162.
Sowas von egal 2 (German Synth Wave Underground 1981-84)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299f821856a0646a569f4e519bcfd01abc35429852ae31346ceccfbcb2e94463. 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/DELI52003035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fbaa4021ffee1ca59cbedc76c2210d4279c453fce953ca112a6d1c3769b64b. 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/DELI52003044.
Eins und Zwei und Drei und Vier - Deutsche Experimentelle Pop-Musik 1980-86
Silberland - Vol. 1: The Psychedelic Side of Kosmische Musik (1972-1986)
Soul Jazz Records presents DEUTSCHE ELEKTRONISCHE MUSIK 2: Experimental German Rock And Electronic Music 1971-83
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c3b14edff3c8e90f3bb123cc86de936a63544c67f14e1a8b9054e364cc0d39. 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/DELI50800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6597373464092ea83dbd89988fb4c6011ed04a4b6d9ee4716a65caca582a22a. 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/DED267700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8516ee4a123c45c1cbd2a8140c0d5cc148bb595efcf3d690bc00a635fb8b4b2d. 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/GBBCK7700412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76541223adbc8e45a2d85fe954b38d63b79c16a8d97c892e48cf4170cc4cb2b6. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBBGH0412703.