Ben Cramer (born Bernardus Kramer; 17 February 1947) is a Dutch singer who represented the Netherlands in the 1973 Eurovision Song Contest. Music career Early years Cramer was born in Amsterdam.
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 0xe3a06e6968c22571a668b9f7ac814ab15a01e8ee73749bb68b5046dfe8072c17. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e3ff017-6194-4879-972f-654f18c651dd.json and https://artists.proofprofile.net/proofs/artist/7e3ff017-6194-4879-972f-654f18c651dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dreams Never Come True / I Can't Let You Go
Het Wordt Nacht Signorita / Bon giorni mi amor
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 0x2b1cc42509f9839fedcf44decd65501dffd1b37598b200cd7e54ab7d65a47392. 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/NLE320600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c019eaa58ef8694165713f593d11b2a59b0a7736a70c30ee58b4eb0e89f9ed4. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/NLE321700143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721c62d3ecf18c7de0f625def5ed3d9b1d022f55cb30257173c83e9425e15691. 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/NLE320600007.
Recital At The Festival "The Golden Orpheus' 72" (Live In Bulgaria)
Veronica Vrij / Aan Het Mooie Noordzeestrand (De Oude Muzikant)
De Oude Muzikant / Kom Sylvia Dans Met Mij
Der alte Musikant / Komm Sylvia, tanz mit mir
Vergeet 't Maar / Nu Jij Er Niet Meer Bent
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc200ebc580e309d4c9db1d7a292c47b783be4408985d8ef97aa59d3f1bfc5e9a. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/NLE320800226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967c6233e5168bb791f437d9e325964fe522105fc78fa25883a6c579774a3dbd. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/NLE320800227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35df23adae806513ebf3068e57813bf3d33f690ae13ba9b47195952d688dced0. 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/NLE320800242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc2cdc00f06bed4e7fc657b6c39bed802092ddf0e30e40d535ac1567b906234. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/NLE320800239.
Everybody Loves Somebody: Ben Cramer - The Reader's Digest Sessions 2004–07
Heerlijk Hollands - Het Allerbeste van Ben Cramer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9708b4f87388c79907ba9f75b196e7a81bab6d55643d5b8ca99ecd1567cbd54b. 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/NLS241201982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721c62d3ecf18c7de0f625def5ed3d9b1d022f55cb30257173c83e9425e15691. 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/NLE320600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cecedd827db24359920434c20cd499ec1647572b150b4463471156459aed18f. 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/NLS241101180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7f67607f090af87a2b39d2cd664c1744f0b2fe9e22341a1ba6a449d34980bc. 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/NLS241201990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cecedd827db24359920434c20cd499ec1647572b150b4463471156459aed18f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLS241101180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7f67607f090af87a2b39d2cd664c1744f0b2fe9e22341a1ba6a449d34980bc. 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/NLS241201990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceb6c5fef212c3399a2b77aef5f63d620211debc5df0e7a2044c7a7a9631f3b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLE320500073.
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 0xb104af37be15852af7ef98ab70cc0d32bf60dd5ae3101c68313630b6474cd9d0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLE320800248.