Klaus Doldinger (; 12 May 1936 – 16 October 2025) was a German saxophonist known for his work in jazz and as a film music composer. He founded the group Passport in 1971; they played in different form
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 0xc43bdbbcc87fab4562509642252bb9dcd591639733cb654d3ca051bd3e94578d. 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/c504591f-22a2-41dd-8316-05e6f902fabf.json and https://artists.proofprofile.net/proofs/artist/c504591f-22a2-41dd-8316-05e6f902fabf.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 0xe0ccd083ab3476cd879941222185ef23584be6a66b679caa55b67c1e7b62eb62. 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/DEA629263070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9424918536137f7c508ad9a488f8834a26282378761bdde40f3ad40d96dca27. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DEA629263080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81883d7d42b367ed7f88efc28e8be194645e40d388f06aafb15d1e8816cbae2f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEA629263090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92d37986e0351716374170e79bbbf2d4f652da268e5966381ef74465f3476f9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEA629263100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c9b2b86ab006f1a22324c3ffdea041b883a81f6a1e529487cbeef64e4632fd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEA629263110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111194190f9cbf8875d15131bce99a17c02a527d577d22884dab9bed7696a72e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEA629263130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0c89fd72960666cdbcfffe7418e764b3e17e3b6690e9f216c524df67a370d1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEA629263140.
Flug auf dem Glücksdrachen (Schlußtitel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55147c9e371487924899fe88135bcb3e4f3fe3aa7eae08646c7edc84db100aeb. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEA629263220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bc7b6b5d54a2b5b9d3ec4b0e8c698f610c1b84172f385f8a61031c3c34b2e2. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:33:09Z), 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/DEA629760560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7680f92cd772e66d369e53aecb5a0b1f5575ec35fc34b08681b8e5e0e02ea5cb. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/DEA629760590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d8a0b113f1893cee4a18c66f9500e489cb25537710e5098efbac80add854ad. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEA629760610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adaebe5ad16734baa01fcce2fb4826f4b2d878e6d6ee475d7ef08cdd3cfa9fc. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/DEA629760620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6afc4f013c61b92083c8245f43c2113369c7e69f83d41a45bd14b88da779c2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEA629760630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1a609ea3f0ae6d25c2e47173af49ab87589a66e45bf34ab13d2590330f4a21. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEA629760640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25235437adc6acda03e3d33d71d0ef70d6747b561d3c4a2df5f6dbee0a0ffa57. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DEA629760650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b479f27cd21d8383e0600081510cd399fe9244a3a8e43c7600f2b3c5ade1eb2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEA629760660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f0a09c7671e1e493d11b146886aa1adb4552aed3fe530732de60baced6987f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:15:24Z), 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/DEA629760670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec072901369058d38a610e6d2a59a49eea3814d21ac4490a4100291a529f1f2. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:45:37Z), 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/DEA629760680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a659da15b6eab07d380f589530d0750c4deed5ae69338da13cfeea6b1baf7ed. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEA629760690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b62145e431973bc5b70be7b8a957560bb26c06ccf265e4aeac1096c6207ad4c. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/DEA629760710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5982a28bb908f921887e4a2366f19b2be7ac8fdcea43f9bbabf4ab82418ebe. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DEA629760720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6924a23021f671728190a675feae6d16f00a1eb2e2cf73c19374f43b85a62f04. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEA629760740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4f9c7fdc57abcb1ddc031ec9ba06f975212de9a270bfc6d8f6f4fb943c6aa1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:01:17Z), 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/DEA629760750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130c05064929d851ae95ab59f8d011df06084b78a649755bdfe6d608d48f1fee. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/DEA629760760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4445128d23258bf2fbc604aa602d712124b6b768f95772d5a922401635e8234d. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEA629760770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbb7c5dc9fbb051a20527de683765c07ab1df82cc394a74a132a63352c4a066. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEA629760601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1541e890dddb5b426cd74dead53481b17c373a1f002edd969cea4101e5a5cb9f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEA629760840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98d65f95dd52af132891262cb26cf3b7841313a68b45fd3847fc965d7660626. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEA629263250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc472359cbda07ca8e0d80a923a7bb9db453ecb2747356789e6df4995cc882d9. 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/DEA629263300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164f4c510a7638536b38f7df85e91a9649cc9bab1f2602cf29e3ffb61d570bd9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEA629263320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1386d137345ba69d3fcf31e746b0ebcbfad5829d9ee53e72b28352ea907c65. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEA629263330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce11525ffd6cbb2d5758a30aacf6ec309baf7a6811697c60958b90257167865. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/DEA629263340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088c6f66b49aa0aad0fdfc014eaacee959c7d94b65958e06db819c75dadf00c3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEA629263350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dd9b9026686bfec38658e8438f1e0fa160e021588e1679d023997f6282a15d. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/DEA629263360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cea85ca3348d53c4bbbc8c12261e6058866b4db34a111e9f38de8c9763aa456. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEA629263370.
Seine Erfolgreichsten Film- Und Fernsehmelodien
Early Doldinger - The Complete Philips Sessions (Set)
The First 50 Years of Passport (Remastered Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4273ee8317b9008470acd6dec2635a7656e22553bca6d5cc4638cefb5f03d4eb. 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/DEA622100206.
Titelmelodie (From "Tatort") [Arr. R. Jannotta for Orchestra] [Live]