Reinhard Voigt (born 9 July 1940) is a German painter and ceramist. Career After being trained as a ceramist, Voigt studied from 1965 to 1971 with Hans Thiemann, David Hockney and Gotthard Graubner
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 0xadaf068b105fac0ad5c87b9c731d138c1980cca5ddd2155b66d218bd416f829c. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2c57ca3-6bcb-4e26-94cd-99adfd96c164.json and https://artists.proofprofile.net/proofs/artist/d2c57ca3-6bcb-4e26-94cd-99adfd96c164.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Der, der mit dem Gummiball sang (Orange)
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 0xa63ec0ccba838cdf242d4ee833c83d1808ca70d0530bfb5a354721012968f6ea. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEU672500265.
Dies ist die Geschichte von Robson Ponte (Thore Pfeiffer Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704f3757533230c2d083239a64c9e5f3ae52b4e5e6b1992eb2b54fa0f9db668c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:27:09Z), 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/DEU672500263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde01392a48fc1e362bdb7353c0cae5b8a5419911e227e448f2d574fb1966fc7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEU672500491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c850add27153affc648e5280392689f1ae9a10557cb23862832c5ff2a23627. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/DEU672500499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8074c2028556c5044f7a6d7acb30cf5732cdaa1cb76a522a643871b550d4ed84. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBHFW1700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17794d6f74a2b0aaf1b921bdcf52d07ee00c52d0179cc4cbaa359f718577995. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU672300868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9935480cc32f5ccc46b3acc72d3f14e63c77cb90eb9dc56a58911d8f3b444ea6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEU671900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814d3a5465583c6c0e28d4db3f68b83d1790f22d91f3785b9d4a1e4eaeea4278. 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/NLD681803306.
Take My Hand / Oasis 4 / Rosa 1 / Bürger Sichten Falschged [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e4c670048c5e81864db5c100ab2b6cef7f3f8bac430a69624b604f4f6bc8cc. 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/DEU672100362.
Cascade / Bürger Sichten Falschgeld [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332a9ac59643d5f6e2567babcf0cb10e1c842a9b41b970504423ae15d2bea0fb. 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/DEU672100363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953253fee160d2997be1dc2f61cf5c4f6c00d012304b618986c6c5a56b1bd819. 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/DEU672100367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768e141a539ecfc3fc59ee70816c142e59adcb821a9f69f66d23264c9f63468b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEU672100368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdd04b0570721d970dc2241b2422f25b198e34c3c93554b4a77b55edcc0b072. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEU670900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f39c45ca9bf0f97f4a451ba9f5002567231ce4ba8aa56f3040778dd4b498e2d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEU670300043.
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 0xa3640b7de270ff0aeeb460e4cf40cc186f6ff94926d21b168049d32f757e4412. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEU672301050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8218685ec87e2e738b2d5cf9d8a0cd17174ffd3c92774f5a1f7e46bf8f81b251. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEU670600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dc33ea2731c8b8b4785270ceccfe9980ed3a839b7df8a0e6b4b8088a194b33. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEU671100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4a74f8bdfdbb5cb3da20f9a3ab279a4d37d0c8884155628ca70a5606c89ccc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEU670500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fff8e9994058f97079474ffcdf47dd87b5d2fd99f5733d61333810464a28106. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEU670200056.