Rüdiger Baldauf (born 31 January 1961 in Bensberg, North Rhine-Westphalia) is a German jazz musician, trumpet player, composer and arranger. History 1980: secondary-school examinations Nicolaus C
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 0x109e9fab67f281ba35bda1244a6e739fe113ea7a82b0a429dcaadfe4d30cc427. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/626db09b-f347-4584-bf84-c0b8c61fc614.json and https://artists.proofprofile.net/proofs/artist/626db09b-f347-4584-bf84-c0b8c61fc614.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Total Funk Trumpet - 6 Funky Tunes for Intermediate Trumpet Players
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 0x8b7ccba60135ab3238ad614e2e74d1dc285fe9962cd35d51c9ca37659ee2057e. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DEE282162804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7889f491caa28e4a90d81c5a1aec8c14d66e0a0aa70b8b50236d99c919b36cc. 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/DEE282162805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b5fa66975a1fdb9631617d869e46bd77d5bc07950d2ffbfc815e59ecc89d46. 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/DEE282162807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaede3742b5bcbc3aebef47be5a2f5c8711422a34a299c73ca592947be3f20104. 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/DEE282162812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214338399553cdd67eec326ea083f4566e0211a58520e344f96ca7244396cd02. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEE282162802.
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 0x60cac2d5c31c976e29bf4403914a26eaef349c82492159ca54de99ec076d23ed. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEE282162803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc344b26d5667df0b864ee3b8b4280b84c2872815c3f3f7a12c87a139e5e93ab. 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/DEE282162811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458add474456b44dc1c592717e8ba584addf80065ffd7cc9324b2bfd67dee37a. 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/DEE281760602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119f96c98312666ae271916f67a9937559e18c9c0042971eac4f6828b3cc0579. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEE281760601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc526f586467fb6b83b0bdb2963c280f5020156c2d976304d75aed76bc7e2a9db. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEE281760605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb42f41adb0c01b7777039bfc99fbc9d656d9136ba40d64fa877a320a8bb650. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DET511308011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ad423af288716b885ef8b1f83991d2073bedc8aa8b473be4168bc3c22daa1f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DET511308005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa101f06e62381ad9623ed59c340ffa73a29b94ac6a463db29c26c8d71180a9b8. 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/DET511308006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0704916c88f01b5bc386fecbe306b599984f1dfbbf0dd5e7d95f8463d1d4be75. 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/DEE281153003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a5faf7ec57f2c7d643e24f4bc067599196cc54b99e31cd5279691c9ffe2f08. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEE281153004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ef940e88a7da98b2d560e397a15490205c3d8c7de1ab44c9d89bbc572e0ec5. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DEE281153011.