Jürgen Ludwig Drews (; born 2 April 1945) is a German schlager singer. Life thumb|Drews' Bistro in Mallorca Drews was born in Nauen near Berlin, and brought up in Schleswig. His father's family is
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 0x395076b33a879dab9f6321903f86754bd2a1e520d7bed67c4aaf7c137875d65b. 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/49386f46-255b-4029-a39c-88133f942311.json and https://artists.proofprofile.net/proofs/artist/49386f46-255b-4029-a39c-88133f942311.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 0x5ad2219064565176ac11d22308af74a1aa2b2504361177cbf0d68b0720b81b88. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DELC80800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac578c910da627742443735f0df8f865efc9fef7930c85e4947ea8fbc416a0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM72001461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868105b61afa2b23f32091b051f21fdf4e77050fc6e1d94e6b6d3e63d5b365e9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM72001462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce541517a3f8ec55b41678d4208e85a1f55c9039d19027271ff62728c49317e5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM72001463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d604cc1e222b039a8ab9061044d8d3b2e9b202de6a147df559205b2bc5e15c. 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/DEUM72001464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d02a037f0a6b23cf09bd74ca40948b45050b62c0c5f4bba9b990dac78ca195d. 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/DEUM72001465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00ea7db0302246af9b25fae0e94970a077ad7c967f0b74929e1c3ea6319f267. 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/DEUM72001466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0229d0573dd49927997ef0e4b9a66f7889594d0063e882cf4d28853775797a3. 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/DEUM72001467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0074220639856ca703cd193618c767a649766482a24fc52b0e0ec31baa07fe6. 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/DEUM72001468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25e39e7c097745c22ae8fb2b8086b57f832d432993394bdcb30e5da3ba2f209. 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/DEUM72001469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699dfdce08d8350c3a0411d70bd36531983cfb93b2512c3c5942a708161fb9da. 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/DEUM72001470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02ef8738522d9d7ae600fbd7382c63b414786aa5491b691b980d3bbffb99be7. 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/DEUM72001471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f59dc0f684889da2c0f772595232f693d64e07c483d7a86b1527c1aaa855d4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEUM72001472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d470f52bf7614ee4684f22675b7d212073b831ae15d551982d1df7e20b1cf0d. 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/DEUM72001473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe526553e49b965ac4e9ddc907dbcc0ccb5b794c9cad8a367b9daf26efd4f5402. 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/DEUM72001474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6d99f4af589744acc9e1bae443fe74de9bc540602e983ce11dee73297d9c80. 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/DEUM72001475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd22b877d55cc029bab1aef68e63c531fdf2985edb77109fb4bef0d57ddc927. 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/DEUM72001476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31d4cfdff7241d1ddcee45e52ce290ef04f17dc0d6862f854a8f0ce83bebcbd. 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/DEUM72001477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944a9f55ae1e899a0f94221c3ff234fcc980fafc63f53442da62ecb24cc421ec. 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/DEUM72001478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2f4ec251ff691cc8b8ef35649471b767c62626091202a85a64b24c748c3bd2. 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/DEUM72001479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1602322697e6eb7519f9a7dd1f00881a7db2b526fb7369fb1cb7c85254c807b3. 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/DEUM72001480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a990c97e734bdc3e8ddc1357339e39628d665251c01b03a8ea64c5f15603ef0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM72001481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c759e5473e798053520d9da3c549297343ada525f63086d649d672149f8008. 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/DEUM72001445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9facae579549aafe39d1ed3ab5cbb25b0b72d79f5d2d501d974c72f9589f02e. 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/DEUM71906725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda571f74dd127bfadf8c503f3d1c18402a01bbe9256400ca2d8f2e4889005e8f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEUM72001482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce541517a3f8ec55b41678d4208e85a1f55c9039d19027271ff62728c49317e5. 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/DEUM72001463.
Irgendwann irgendwo irgendwie - Stereoact #Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb10c36334c190e3cfd7e3a39a67a965754a7ba15683c12a37896cf93710a129. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEUM72202322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9facae579549aafe39d1ed3ab5cbb25b0b72d79f5d2d501d974c72f9589f02e. 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/DEUM71906725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0837d4e26f3d63df63d45355009eca8500ca29fe1124da492920bf4c57520eb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEUM71724145.