Brigitte Kaandorp (born 10 March 1962 in Haarlem) is a Dutch comedian and singer-songwriter. She started her show business career in 1983. Kaandorp's style is a mix of absurdism and sensitive songs, s
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 0x1857e97537176a0ab161450a48108f42c05626b43e8e09ef351bbfa364300fbf. 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/1b57cf11-ffc2-4e44-ae32-515c94a598e0.json and https://artists.proofprofile.net/proofs/artist/1b57cf11-ffc2-4e44-ae32-515c94a598e0.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873d796ece648ed8a179b6fbc2e3b78ff6fa03310ca0f267dd2ee4309bbceafd. 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/NLA240303952.
Radiografisch Bestuurbare Zeilboot (lied)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a6b807b66f404c61763ab40f339a848bee2a086bc546a23d309524dede6b47. 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/NLB180105402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1415a08fa4b2b64706b48a62aad22e20061df22dfed95b68961abab2913035b3. 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/NLB180105408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3feec3b100c9ee17365c0bbc028394111630dd4fc3f8d9dce97bb1fedc8a2721. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLB180105413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d633bb13c911115f9c8a67b27a287ffdac33eb0dde0229b718894026e89f9f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:20:48Z), 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/NLB180206101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5d89da2b89d543fe108a4c7ffc245f7efe19f114eaed266c896d4f4a96d42a. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/NLB180206102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2018193f564c727cffdd59bbf41f40b46bfe86a991a2e944d763b18c2ae488. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:33:02Z), 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/NLB180206103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05090d8756cdc6c97f54ac7199b2502de850435795dd76ab69bdfb973350fe8c. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/NLB180206105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf9700e24db182492f649ec6c2af57209840612226c07f23b0bc869cae9dcad. 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/NLB180206107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04ff756a2f1893b97e930be5a74c2e3ac3f94b94632c1958dc351e737a63d89. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:08:01Z), 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/NLB180206108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96ccd9c59c5c98d8f18a594329a8216f32f24e88d673477564f0e4e45169de4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLB180206109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9233d3a38cd482e7ac4397c7c21febe9dd028254e109b836e5192334dd9815e. 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/NLB180206110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8207ddc6106e722acab18dd43e046d9be7d44be94694babda78e72e49dd2288. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NLB180206111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676531f69f65795575671b8c11fbe3ee64893bdcac3d3e1e78534ebb13799827. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/NLB180206112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe58cc8ab6922e1ddaa773be6b3c9444c0ba96f10d90d9593dcfec7d2c1debc4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:48:30Z), 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/NLB180206113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0caaff2f51d28c05a974fac962f6da76ea928621991e938653857c8d389ec8. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/NLB180206114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d15590ac3a3706ea8a11515b9cea9a6e411c3ca3df678f212ca64a73789320e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NLB180206115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad593179b69f3e9ad8204449af83f3b671ab0283c5618fdcffba12d81e10734c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLB180206116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e53df1d752b432c9beca4bf4b93f3a500db01f1e0c9e0bf77511b720aaf78f3. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/NLB180206117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b5807691240d1507b1f57b334daccfdd07fd64185db6a40d37cda63271ffdb. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:42:54Z), 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/NLB180206118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbe844f2a461f2d3a9e089d9f781c826c798c1b397b5fb8f21640400ba8cbb1. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/NLB180206119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acf35c7ed9ffce17eec5e06b94afedcfc07c97b6e48fe7607c70a48c1e62c4f. 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/NLB180206122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429f6098d33990e277d89f15741f7edbb635f3038cd586a11821d0ba358ccfe7. 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/NLB180206123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815fbbdef5101ab57af5739600b32264d2509fe951f3a17e9226edca50040c94. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NLB180206128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cd8597e9bc41ebc217b3cbbbc6fb3b96964fa708f93840357ba6dddc9494a4. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/NLB180608207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb93a2a54698c007a2622e5419f7e823c28f0e1220a123bf51a8fe8efaf0bce. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:04:58Z), 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/NLB180006009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d98748255423b0c0248307450dfa3ce1cecf7e05137d25d615d860581f288a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/NLB180006019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec9deb2ea1769ba7b3800fae28f9f9230e8c6c3a16ee2a8522e0a6bf61e022d. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/NLB180509801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3a987c3cb959bcd939f2c407e4f3c704392e276126eb3732193f65dac6593f. 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/NLD322400392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5847b0988f437618317c055b9151f056855e0deeea571ad76d1c7479728e09. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLD322400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7a1c332de8ebf01378250cabac2bdd49aa9a07dd89d3a929dffd3f7173b24e. 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/NLK8V1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba12ef0b764cf04c4a892b84b311d4160820857e9ba439eba9b278e4c76136b. 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/NLK8V1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8826c312841d9c2e6f2a1d1ba47e5bad3094cef6c5dcfd7a4ac1b912a006eb. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/NLK8V1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38cfe16b7ee25daf3bb9fcc1f84b7b0875730fec836f0c1d84d139f597cf648. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:29:31Z), 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/NLK8V1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9984a1d858cf0fb7ccbaaf2f1df515513b820837cbf8af0a787a3fd47456ea47. 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/NLK8V1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a378a7487f44430183c1d2445584c0fe7bb9c4dbb4f129e45e5936921046f4. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/NLK8V1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367551880e75dbb6304df555bcfdd8c3147947bf7b2abdf59cd51055ff671ee5. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/NLNT41000124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af2ab83c12df8ae1e2072f879e341347b33f80d5b8264b9a05bf41b8b7e88d7. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/NLK8V2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9203fcd8bb5d83f2a9e1407477034cb4e7200df4abd5f8df21960ab926e3a24e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLK8V2000002.