thumb|200px|Dennie Christian, 1995, in Kerkrade Dennie Christian (born Bernhard Althoff on 22 May 1956 in Bergisch Gladbach) is a German singer of schlager music popular in Germany and the Netherlands
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 0xa04c051b1cc54e9557e641d1422382c554497a9b3a22789a4cb4125b987c57a5. 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/8423f020-5337-4011-a5f8-fbdc92c5d768.json and https://artists.proofprofile.net/proofs/artist/8423f020-5337-4011-a5f8-fbdc92c5d768.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beer Barrel Polka (Rosamunde) / Baby, How Are You
Besame Mucho (Nederlandse Versie) / Olé Daar Doe Ik Graag Aan Mee
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 0xfe2ac919e5f052bb1b16020504fca9a7aec5eedf580acda5aa89e7530661cb32. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLA340000148.
Guust Flater & De Marsupilami (Wij Zijn Twee Vrienden) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b23ce1d8cbe20c3955f624e49119852eae60789a074c97f033effd7b3885db. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/NLUM72001150.
De Muzikale Wereld van Denny Christian - Deel 2
De Muzikale Wereld Van Denny Christian - Deel 2
De Muzikale Wereld Van Denny Christian - Deel 1
De Muzikale Wereld van Denny Christian - Deel 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc349b0186348a71b83f3510d516fd7513ade0591c7c634d53a1d97438e811a5a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLB082300725.
Alles inclusive - 14 neue Hits und 4 Bonus-Titel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c1b023becf077131be4dc8f1e8525917317bae48136681204c0733e7274e61. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NLE871420701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a58954d9143c8e123dc25ef8567fe52b9524b4172cdadf628608ac1dc49370. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/NLAX70922894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4419afc87b4f93fcfea4e020a4cdffe988edf19db6d14d8a0bbb2e352f039844. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLP421200906.
40 jaar Dennie Christian (Ik ga mijn weg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6b2d54f74e4806212b575764162e13507d55cc33a76526dd4df69c441c3895. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/NLP421401014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ad59129e3f9bdf3f7927e735f799162b560437a0ebd9156cde1f98fbab83ad. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLP421100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd172fa26c45b4814de617f409d463e57fea031f8e20c589772faf5005874433. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLP421000018.
Hollandse Sterren Besame Mucho en andere hits
Dennie Christian presenteert Schlagerfestival Deel 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff785351ccc9786fc8a311ad8c14a5ca5e425a2e39a9cc6044be16b57e85368. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/NLH3L1500024.
Dennie Christian zingt de grootste Duitse Schlagers aller tijden Deel 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2b6faa546096dd5949906e00250cad2fb2dc957fccc8debbabd1a1615865f0. 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/NLH3L1600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5c418a7935f95f98caf3bf0dd04f8deb2ee500ae17ae554618106104ae3c48. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/NLH3L1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52649803895def3aa787320ab792fe031199d7b2102a76326e0c02f1a9c8b1e. 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/NLSU31700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62ecbaa691a9131f3ad5e6d9d2579598fc1bdddd120bccf90436b56501f4039. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLSU31700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1308eabdf660d412ad574ec972f4fd325328d03d98c63bfec246a1662ed85da4. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/NLH3L1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3338014ec40c0fb98131f7adf41f1ee3d838c732bc621a125e47dbba93d414c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLW2R2393449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba8279944c529ecfbeab13c08f980d8d50cd255735c04c01aa066c87947dfb1. 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/NLRZ82500325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62ecbaa691a9131f3ad5e6d9d2579598fc1bdddd120bccf90436b56501f4039. 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/NLSU31700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2ac919e5f052bb1b16020504fca9a7aec5eedf580acda5aa89e7530661cb32. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLA340000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0c4c21fbb3e2272256fb6950f39451ded8ff73fe7a2f4b3da7036939ce9afc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLE870891206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a6c369d7f37cb4ef888358fadf72bd36de5a25a5da8d4b9b86cc7652f46a8b. 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/NLSU31700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609f650d25556fa010b9c41e836f02ed1e78531ba89e08f354ab6704d28db782. 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/NLRZ82500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae4bc1fe1c8753da9c2b301dbec6adf6329753bdb3ad46447d05a13de65d677. 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/NLE871334506.
Beste Zangers Seizoen 10 (Aflevering 8 - Duetten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62ecbaa691a9131f3ad5e6d9d2579598fc1bdddd120bccf90436b56501f4039. 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/NLSU31700045.