thumb|Frans Duijts as Ali B Frans Duijts (born May 10, 1979 in Tiel) is a Dutch singer and former André Hazes-impersonator Biography Duijts began his singing career as an André Hazes imitator. But
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 0x359eee12416e97f75b3870184db286e2cf221f1cfd9b03a8c27ecde2e3ff2716. 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/f16bed48-31bd-4f6f-bfaa-5191a1c5cdf6.json and https://artists.proofprofile.net/proofs/artist/f16bed48-31bd-4f6f-bfaa-5191a1c5cdf6.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 0xb1494f000fb7c461ebed5048fcd8b06617f4fd06053f24030fe2b0b6bf111377. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NLD980800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c4e7b6967b166b31c326b175be1794d4f0330b6b26e9654d5135ce6006857b. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/NLD980800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ffc9d3b333dc1364691bf0e17d61d392ad3ad18f4c9d9f89f602e31d135e15. 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/NLD980800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cfda662093c0512318f04c7d58c49588e5e0f32219c81fab1bd14c42289560. 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/NLD980800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a46be733215047cb880a55b6ccef77f59f5efc929f7fd813f7a76495b4b90e1. 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/NLD980800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d0320260b8366793771440b395466cc2cb52b7cdecd2aff54258920c3ef9fc. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/NLD980800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86efd8b70d800191ec5554291a681d421320ff373d9f3e952855985ecf87ccf5. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/NLD980800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec9ce44ea1ac85f080ea55c99e19670b7f110a5a1052d1f74ad26391b08f5c0. 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/NLD980800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e430e0ad356c4a6868ce6d90c05bcd09c90f5bac094d29567f5f4387b415ab8. 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/NLD980800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20c2d6c4e4a115246fa125538d4a473ad8de492747728f96c4e04f443d4557e. 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/NLD981000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f996f98746e5b7258abcc81abcd9d9eb3d00b725b042f6fe80a5a888e2655d0. 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/NLD981000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76ddd0c8410d0d99df4f51ff01702ea28bf7e8ec5f84e2d740cf7310d41ed68. 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/NLD980800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498c93edc5ace8ef8f28523c55ec9fa379987fb5d10dc837a9c3fc6d41b2ffaa. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/NLQ271300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e94ac3fff62521d5a186fc5732d411dcc2f4aeb1e89d71f4405a4c4fe7938a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLQ271300227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde85f05f7ae588b6227c21d4000b63b9269daa6fe1b8c576494a7bce5930df4c. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/NLQ271300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8956762e121b8cde618e556ee0d35db6f0d1a9aae497e3683a3d1eed01c0fbe. 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/NLQ271300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb204c425030ddf8ac62b09dd100cd99e8676b0c341993ecd249e91cac74da62. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/NLD981200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495825813f1edc585659413d543ff89a7347e88bbb19cb3c3aa51d99ba54fedd. 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/NLD981200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f0a523cd6ad95d810a4021403bdec451da365c26e31c0fad0a1b03695c7b99. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/NLD981200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1fcc55b74ac215258b519298191dff107c94a92d465a1ab16a975397bd9363. 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/NLD981200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86a3b9ae8f9cca0170b07120b92788713cd474ed7e712772b85f2b76eea61d9. 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/NLD981200015.
Intro Albumplaylist 10 Jaar (Mijn Grootste Hits Tot Nu Toe)
Intro Inspiratie Playlist - 10 jaar (Mijn Grootste Hits Tot Nu Toe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fddc875267a25b6a05073fcb85de507289f04c3ecfe1a990429c8e289a45c00. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLD980800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8783b030819385b4ca87ce6eaf0687b28637f2473a306f7f0b95f318a8567c5. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/NLD981100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76ddd0c8410d0d99df4f51ff01702ea28bf7e8ec5f84e2d740cf7310d41ed68. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NLD980800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b0477815d41dd56f20b5da7e828351d6307021b0594ff0a9e7c7f3e33455ea. 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/NLD980800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cc74c9d90197e465af050cf871c5cd4f1c1a0a4770326ad7419bb4f42169fe. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/NLQ271300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587a29b4e3c9a8ef461b13b8c64ff5e2d6cacf00be2145e4d5157abd5ab67f5d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/NLD980800002.
Heaven - Uit: De Beste Zangers Van Nederland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3a99953da24e86459c6bdaffa67772d1696c91665ec0d40e0de746e0a961ca. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/NLSU31500040.
Het Is Over - Uit: De Beste Zangers Van Nederland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d7e26a94af00a9ffe332f92e517ff12708d79e95fa96032dc2aaa0c3b7365f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLA241108092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ed7e17101596c0d4e12983702b2670bfdcf723ddb89013fbeeaad3dce57011. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/NLD980800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86a3b9ae8f9cca0170b07120b92788713cd474ed7e712772b85f2b76eea61d9. 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/NLD981200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd643275ee76d0fb5809927df054f68281c1163703ac4173f470d27be0a27d722. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLZ291500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c71c05b7901ab56a1d21a52e04a187613e9ce747ad147f74c1c26711085dbc. 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/NLZ291500168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90345bb1bd8e7ada74d65a07782983b53dfa344d2972ea9d4a7d07528c93776c. 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/NLZ291600089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90345bb1bd8e7ada74d65a07782983b53dfa344d2972ea9d4a7d07528c93776c. 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/NLZ291600089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f869ad314db805bf4c77f572f5e3650da3c258d479c699bd25cb7da207cc99b. 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/NLZ291600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b83503a5fc0a36eff9b7fb3405b76f1bd7552ef1c40f64b397b1b62e1395a57. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/NLZ291600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78818210e0faa21d211ae98eb29445a9e727d76a61f262a13e239befa8ae932. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLZ291600147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b217a01f92c76dbfe6aeb1140c636139d04290af7e4be3db8bcd52e54c4f56a. 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/NLZ291600135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b83503a5fc0a36eff9b7fb3405b76f1bd7552ef1c40f64b397b1b62e1395a57. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLZ291600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfcce05349f00ea8b8919f837585c3da364a3e336d4fbe977094296df9ef518. 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/NLZ292400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68061b148fc01c6d8da199bdc7659475424e04a9fa408fd70d04d2f86e71a2a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLZ291900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f893b9a3d915bebe7e6614a79efca544cea3cd8d702f82dd014ec80c901244a. 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/NLP972200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276d1d1eb09c97e5bc4e148a7744a9ea9621eca623538d52aa290fd5cfb4b2a1. 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/NLZ292200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397fc138e2c5d6397ecf636dbbbc2b32cd3af11973913338114527ed63f55a7f. 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/NLZ292200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa791e478f03a6cbca5757d80310cf89da0ed5d11a984f50430f7e898c5218fc2. 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/NLZ292300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7859801ada24408f8e8b8c9b8967c9a9e9c15c8e4b31ad80f0b373d9823db2. 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/NLZ292400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee39050853bb85be668b52f920827991ad48c5b1758921529647d0034ee70cb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLZ292400234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe745eb3e1865c60cb03322957639e2a85df52491e1006142cdc397d3330ff7bf. 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/NL1282500021.
Oranjeknaller (feat. Hans Glock & Frans Duijts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45527ab99dcda9433272418745000bfc030299ccbc7d5258acddf0f697fc72e1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NL5HJ2300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c25d1a18585ed900ea578f083cdb4141e6a6290fdbe22f12f6a5b9a55f21c48. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLPW81400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449b89fbd51bbfc7fe95df9235efed0be8d460392b85eea6b5678b25e15b24f1. 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/NL2QQ2100096.
Het Beste van de Beste Zangers van Nederland (Deel 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d7e26a94af00a9ffe332f92e517ff12708d79e95fa96032dc2aaa0c3b7365f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLA241108092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8fdd81a3587196d9866b6f9c340b0f8f3a320d01d06771b90fae0acd8f34fb. 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/NLSU31400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f3950cf435bcaa10352760be0860b14cfda64d98145104b43c79087faa66c1. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/NLE870891101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e248af84413d0029a69333bb484799c70df08e067db2b7a453d40efc20498e. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NLZ292300015.
De Beste Zangers van Nederland Live in Ahoy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb863019f53c09190d857edf249a7d5af6badf26e0545d151077414e424916b5. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/NLSU31400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8fdd81a3587196d9866b6f9c340b0f8f3a320d01d06771b90fae0acd8f34fb. 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/NLSU31400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d7e26a94af00a9ffe332f92e517ff12708d79e95fa96032dc2aaa0c3b7365f. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/NLA241108092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495825813f1edc585659413d543ff89a7347e88bbb19cb3c3aa51d99ba54fedd. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLD981200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11b98c30c68f48ae8ae851b3b410f041f0a4833a529abd4f04c75fe699d4f4d. 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/NLE871334505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495825813f1edc585659413d543ff89a7347e88bbb19cb3c3aa51d99ba54fedd. 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/NLD981200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495825813f1edc585659413d543ff89a7347e88bbb19cb3c3aa51d99ba54fedd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLD981200007.