Sebastian Krumbiegel (born 5 June 1966) is a German singer and musician. He is a member of the band Die Prinzen. Born in Leipzig, from 1976 to 1985 Krumbiegel attended the Thomasschule zu Leipzig whe
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 0x6c8a433072d276b45dd735ce3d89d3a19dd891781d3c13f21e10b2a4887bd68e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eab1e205-8838-4687-a7fb-d3ffb14e0d47.json and https://artists.proofprofile.net/proofs/artist/eab1e205-8838-4687-a7fb-d3ffb14e0d47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Timm Thaler (feat. Sebastian Krumbiegel)
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 0xa8f4bbf8da8b116a6056c2200ddf43bb7584370be953fef7144e8a16ff318106. 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/DEKF22200917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f4bbf8da8b116a6056c2200ddf43bb7584370be953fef7144e8a16ff318106. 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/DEKF22200917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6d0948db28341fe2fa8ec8ff4e4bae3004b923ef80c05b0e7c261712d5d468. 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/DEZ902400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1634de35ca2fef35d5a1803a6fe47c19ec750a81bea52402fc555942f3a24c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DEPI82113915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4410613751d6aee3fafea7bdcc08acd40640afb1c5ee37663157e7f52524400c. 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/DEPI82113916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9ec39c72181f40a4e19b9366296663d87a92d0d72185e0be3384a52eff438c. 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/DEPI82113919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7a57ee564640e70dec94b07a7bfa02f54208e6cffbd0c1a99526e83a6deb35. 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/DEPI82113921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8d23f93c9211da793e8eb8a4f0815528c6bde9f7d15374fd99e6934a3281dc. 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/DEPI82113923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85135a9f50a05434e9c332bf3608d354060a35cd116fbe660fcfa567fb94a4e. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEF069602920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6245042c4046985d00b966896bef5d9d08ad75584c3da090db5fc61ec8b088fc. 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/DEF069603160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe469449747b4c4d563cded56244eaea6686970cb75d8abe53a9469243648a7. 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/QM7282400989.
Fest der Liebe (feat. Sebastian Krumbiegel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaabd865ec6f3c60ba220d3b934c6e315a2ef987b755d20ef735f5288faebd8f. 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/DEKF22301389.