Grobschnitt was a West German rock band which existed between 1970 and 1989. Describing their style as "Solar Music", the band mixed psychedelic rock with hard rock in the 1970s, before shifting to a
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 0x546f446fd93bf7b0867c287e1a8e7d20ff523b350eeabfab21d55f4edd13f279. 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/536c5b43-ee3b-47bc-968a-e6538c37af0a.json and https://artists.proofprofile.net/proofs/artist/536c5b43-ee3b-47bc-968a-e6538c37af0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Grobschnitt Story 6 (Rockpommel's Land And Elsewhere, Recordings From 1971 - 1982)
Grobschnitt Story 3 - The History Of Solar Music 5 (Live, Gevelsberg 1975, Dortmund 1983)
Grobschnitt Story, Vol. 4 (Live, Grugahalle Essen 08.05.1981)
Grobschnitt Story, Vol. 3 - The History Of Solar Music 4 (Live in Berlin 1978, in Wesel 1978, in Koblenz 1979 & in Lünen 1977)
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 0xa3bdc1764372e3610c971a033a3f7573940c00b5de56653c47100a39bf59821b. 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/DEMV90900564.
Grobschnitt Story 3 - The History Of Solar Music, Vol. 2
Grobschnitt Story 3 - The History Of Solar Music 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f743b0382dbbd7638d08ed6915af2ad7322ba7f5feb4a36314da3669606ee74. 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/CA5KR2199478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704eaede9fd849cbf0d0efd0e27ae7d2c35269e3f5a23479c7a541bd6362bc0c. 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/DEF087800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d3d9be5ae92ab5f8852f48bc57d644d6542cb8efb896a4f71fb97fb85042cb. 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/DEF087800260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f689d299096e5a620cb43e536141bb93fb22dcd049879b1d9660161bba71df. 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/DEF087800270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf291eb2b3dcd8a43873dd19de2f266052ec80b3be4a313270ba32c217253de. 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/DEF087800280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22f12c7a87c3b0d77a1c4911839b1f853cbbe16fc7be1feebc70f4d75772bc3. 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/DEF087800290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c76abba8b4642e88a86b900d8c664a829a620fbb2f9b3e9efb391fb24ee090e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEF087800300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053b6183724c1a573f2a9e2b9a8e52fb60710fa4432b22b74cec825f554bc879. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEF087825010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83089c9cf8dab5fa80e5793e85522c288c0b38889ccc196b074b006f7a99e9f8. 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/DEF087725090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f0d988785777bde2a11c632a3fc07728052b5f879fda5e7074a600205a6454. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEF087725100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab1a0dcfdc35ffed29fe2bbbf7b1f6d7955a7d07eb29cd5aad46890d8560f61. 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/DEF087725110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c03e9519e9bc66726203ab724351ecdf938625d0748efb9e2b9b9c0f609b19e. 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/CA5KR2199499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0031492e672c5c74d4e4aa45882e453dc15242c8131e3378a07fdbafd7fbd1. 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/CA5KR2199500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914fc6dd4bcbe511beba1b45a35cf08dfac92d4088acbc6cc6cf6df46156074a. 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/CA5KR2199501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e28dabe200758c89b088bd35b8e03696a2cb060c0050eda69b7234111492ba. 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/DEUM72410296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048c1489162b78b274024af22e474ea21c0bdbd4413d30d816cd60119aeff69c. 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/DEUM72410297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1c9074ead521e74aaef97bb506f695ab91251439ff633f840cbf5eb7e29af1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEUM72410298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08de020b16a01c2dda6d5930bb00238f71c908732feee66e5b46b7b6fe20672. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEUM72410447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8da4887b6cb927d43f8314730146b11272ff39f093af3faaeda6ae9711b053. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:14:44Z), 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/DEUM72410448.