Ruben Cornelis Lucas Moolhuizen (born in Amsterdam on 13 June 1998), known by his stage name as Ruben Annink, is a Dutch singer-songwriter. Career In 2012, he participated in the second season of T
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 0x628705f502321c5f7c9e2d7f4df251610e063d74b5fd5e2bfbbe9a337e90bd37. 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/45f92a9a-ca09-4ba0-94ff-18ba66bc8f96.json and https://artists.proofprofile.net/proofs/artist/45f92a9a-ca09-4ba0-94ff-18ba66bc8f96.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 0x2e66b266feb5e5e2d2259a838c6b48d80e68a428b8a88b9fa7b9855e978c8665. 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/NLMN21600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed58a8d256a45e4294fc3b5767c7eb1b49a25d120eaf359585658cc211c1edf0. 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/NLMN21600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8faba4418ff6c9a917a16194502992421a3eb770a9fa46d693e88502a737a649. 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/NLMN21700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76dcfd5a04f28b85286c2022fe8e31d6093badaa71106b95e842b96dfa88e8c. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/NLMN21700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8258c66d47ae0ca8938782d848f4fab1b75579be2d1b543d09ae9c7e52df92c4. 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/NLV6L1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8bba34f27c0f77c4443c37aefd4e3c71d1e9d1109aeb1aefbb418cc6a31919. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NLV6L1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8b77ff1620c7f6be366436408217d411fd1edb7e9f1c43ba250e07701273f7. 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/NLV6L1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4311b461e1277ed1a4f9a318eb96605fd6cc631bd0fc04132b3878bba392f843. 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/NLV6L1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fc6a1c540292d52b2add354bb7568a400fa09a90a3466c989bc61a533a74df. 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/NLV6L1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9604bb9b123cd229ba1fbc47f99e72360f77533da39b05dc053bf91354a117d. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/NLV6L1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345f170210983ff1f314155f6bc817b4df83582483a0ff6c19c94c7719727df1. 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/NLV6L1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9604bb9b123cd229ba1fbc47f99e72360f77533da39b05dc053bf91354a117d. 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/NLV6L1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5cb9ac2493d0565e62a29d595be3067d74ec84284a33b59f98225a139c0346. 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/NLV6L1900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89abf554ca67e3a2b20b7e3c3237991a44566d53a5df479ac31bb318fe00d9d. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/NLV6L1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0e442ad005aa55292a475abcb57f171d43a23989e91e6fa1ded606f66e11ba. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/NLSU31900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04aceefffc4072848a312048144e13356684448e22549564d9c820ec425b7494. 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/NLSU31900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3397aa49dcc4e27f61aa06eb1cf7dc278f0156e236161c550814dc17a315b2dc. 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/NLSU31900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5c9616fd54c41a39a57501b9f9a4309bfb143ff3ade96a8011a56478a49bcb. 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/NLA802000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac9055c129cbff4d6710246242a74e75f91b4b80c8a077053c2107785976e3f. 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/NLA802100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c3fc15b8b60920edcc3960fe13e634f549768714a08b09641d22388ec133ea. 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/NLA802000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0fd091ad15e98bd2e966cfde9051e735ad14e84add0e8bb67d0b35d4395ca7. 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/NLA802000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e28a6f6dde99d281b2f16b0afaabd089caf5d4647e15f9ee1b4627b54e23c9. 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/NLA802000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06eb8e5ba040d8836d45823cfd6ddcca0737dec3615f087df916c8bb1c87a1d2. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/NLA802000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9b9b445820a7a734b372a81a132bbbc424690f3e01f2200993887e1e059f46. 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/NLA802000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865cdb4c712423821b234b86ee326b399a80e564e6f2dd223c3e83a9773073ba. 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/NLA802200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f86b788d95e5d1fccc54dbb71aa6b089c6bdc50c0849d2f7c940bb882396d0. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/NLA802200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80226d38da5873e56a2812433d6caa579d285ec7bb466b854901011ce823b382. 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/NLA802200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed124a5f479bb99285c211ee62883c675e9d9338fe51872cdde01562ecd79c9c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/NLA802200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed1c4bcee27672eb5bce2bfbb58d7abd73a4290e37347daa70eb7dcc054e479. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/NLA802200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df60cfe8121209f1cf336e2b9303cc68eaf73716f91adb5510d75f30942167f. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/NLA802200020.
Terwijl Jullie Nog Bij Me Zijn (feat. Ruben Annink)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021bcfc493c538bada99e9e219273c5462aafd4837fde80a0fb9db51951b5ca2. 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/NLMN21500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d4efa8d091326dc9f798adfb9c81c3def548afaed7959ae951652b80a5c133. 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/NLSU31900064.