Johnny Jordaan was the pseudonym for Johannes Hendricus van Musscher (7 February 1924 – 8 January 1989), a Dutch singer of popular music, in particular the genre known as levenslied, a Dutch variety o
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 0xf2c74dd0a48eb87d1e08254101ccc20a651630d50c322ef3d9670e3668d0cc33. 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/4c908c27-996e-41ab-80bb-66d88ca466d9.json and https://artists.proofprofile.net/proofs/artist/4c908c27-996e-41ab-80bb-66d88ca466d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Johnny Jordaan Zingt Willy Derby (Remastered 2022)
De Jordaan Met Een Lach En Een Traan (Remastered 2022)
Tussen Kerstmis En Nieuwjaar (Remastered 2022)
Feest Met Johnny Jordaan En De Schuimkoppen (Remastered 2022)
Samen Uit, Samen Thuis (Remastered 2022)
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 0xa9653bba4ec04173c42cd3824a3876ff0cc03739d652c3a127e7f6402450846d. 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/NLA270600664.
Ik Maak Van Mijn Hart Geen Moordkuil (Remastered 2022)
Alle Dagen Feest Met Tante Leen En Johnny Jordaan (Remastered 2022)
Dit Is Mijn Leven - 32 Johnny Jordaan Successen Van Toen En Nu (Remastered 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e01a75a356d4df538bcd6181e51908dddd83709491ea104647a16917068a388. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLA270700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f94724fd377b0cb4d92373d3649b2b79f9c00c40b7e127c4f444a004b97d6b. 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/NLA270700208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba11aaadd2d17aeb402ce84a96b718e26303aad603cbd5b4dcae917559872b1. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/NLA270700206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a462990c5d5e44779da9cf9f2a22036e68ff46ba8e48672a6016a23eede07b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLA270700315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e01a75a356d4df538bcd6181e51908dddd83709491ea104647a16917068a388. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLA270700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf608c2d761637b9a6b793e142ba8e1b7143fdebb209dd9ca011fdf6cb2bab7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLA270900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7d87520dc562240a84855fb81886b5ec93e8b8f78f722a683363cc984b97e4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLA270600672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78ae2100f81ef562a52680c0241a464dfc9bd2f5f58ed99c34cae270c94f56f. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:59:59Z), 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/NLUM72200448.
Hollandse Hits Van De Jaren Vijftig - Dutch Hits from the 50's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3c2d6a5745422bc17085bf752b87e9b619baad3a2143e22dfc343ad95f9af7. 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/NLG620426307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d521202c1e07527bf36fa888be028ca53cd36efaabc7ac1aca5ca6f41ff966. 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/NLG620489920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2963b784546ac95635f42d45cc234830dd6dfcd15f4fdc00b1f1bbf9833178e7. 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/NLG620489871.
Amsterdams Goud deel 2 - Gold from Amsterdam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81ac3fe3e4d157498834b626515324621dbb7ebf1e747a089735b9e9325b047. 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/NLW2R1705743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dcaaa41fc588441167cd490e57631dc8166ff6517b7292a343287c0b83f00f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:27:02Z), 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/NLHR51268465.
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 0xed23ab1a994e637acacfe7b30c06e592624b2ffd3a8becbee89bdac830be1d15. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLG620481669.
20 Hits Van De De Jaren Vijftig, Volume 5 (Dutch Hits from the 50's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187a898ab698ff212f9a86c6459134f9c747f8d170b622d00ae36eee150b1770. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLG620515912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee78f0787dd60822275c14ed65c24ecbbc77cf2e63949ade55009533c51fd979. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLHR51268475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ca8d22156e823482e3e2795da4ae53c69c1a7300744dbe55995a7f7bda0cdc. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/NLHR51267395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34457edc05ef01889a2e53fa1e0b8ae31382d72e8b5182b963c4514a438561a3. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/NLW2R1705749.