Christelijk Gemengd Drechtstedenkoor Praise Him
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 0xf0d0c3e6a3a6b095dec2985841a616f0b24d031bcc19cefd71aff65338d9c241. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad8f987c-9d7a-4358-997f-3b45d45247de.json and https://artists.proofprofile.net/proofs/artist/ad8f987c-9d7a-4358-997f-3b45d45247de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lam van God - Liederen rondom Passie & Pasen
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 0xa706820e43e12871dda2d56c8326b26ab13f029ce574e61a166f00c5439aafc2. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/NLY8X1803092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c65333162e2a201c09ed6db73b5f597cefcbe7250f870b88fd84118f701fbd0. 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/NLY8X1803093.
Hervormde Gemengde Zangvereniging "Vox Jubilans" Waddinxveen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679bccfdf1a14fb6b9291686b121f3c40f89b636035bf7475cb0bb97cb2c3577. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/NLY8X1803094.
Christelijke Gemengde Zangvereniging "Looft den Heer"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac479a5e80990afc3edc34796a0121f6245fe61f4b264258a4651bc0488523a7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLY8X1803095.
Christelijk Sliedrechts Mannenkoor Ichthus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03a3aeaf8ff661f0b1487f2cd31b923e26d7f4f365b471c993953ebd7354dfa. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/NLY8X1803096.
Christelijk Gemengd Koor 'Cantate Deo' Amersfoort
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd0398377f27a81595f391f7c798c406dfdf3a6b57f457665cbef2b14f57dfd. 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/NLY8X1803097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70f180bc38d534cfb53736c4e91cf72ef513c64ffe9ac9d4be00939d7e3b41c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NLY8X1803098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f9358890b66401fc5bbfe1f9842ab0c8f852e254a5a73cbb8f48fe0e30b5cd. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/NLY8X1803099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12de60285537e20736234ef6f6156c6aa4dda51208654bc5638df5cd7d1373d1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLY8X1803100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1dc51a400f33176455b92ed0833f9b671971ad881d0a7df05b629548c862eb. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLY8X1803101.
Elburgs Mannenkoor "Oefening Baart Kunst"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d57cac3c47bc547f66a922aa552044cffc5a50ce1507bea8cfe567aced4c0d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/NLY8X1803102.
Wees Gegroet Gij Eersteling der Dagen Christus Onze Heer Verrees
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a521a3e811a8e55dfd3eb880e7a528683c858fac27131e9a5c414f5cc85f08b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLY8X1803103.
Christelijk Kamper Mannenkoor "Door Eendracht Verbonden"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66e81774c761df72fa1b261fb05aea1ff6ee60aebd6670a16f113140c62f69a. 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/NLY8X1803104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0df3b4270da2cff75f37d4ec1f2eb7d022abe1271a68d6d35296d2f3577a081. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLY8X1803105.
Christus Is Opgestaan / Daar Juicht Een Toon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64447b411ccc34f41d218588c608a8caa8464dafc5ce6437cd4827447b6e48c. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLY8X1803106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cea3c811be74f12f5f52616ef672df8b30971b482c7e81c84b7d85386b45e1. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLY8X1803107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4037b4f94b9bdc7a17107e44fbf960bd0d2befd1dc3b1e39c09ca262a784f68a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLY8X1803108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4e777388b424e441bbdb0f4063f8ed7cc5abdbc9816fba045995d98938a70a. 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/NLY8X1803109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed549c06feed7d98d312f4f748a71f3f71ef14dabdf19e4ad8fbbc76cf08523b. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/NLY8X1803110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0540b9a6a13c55bab2b865a7dba857fcb6cc9fb4c493884478165f7f89579f2. 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/NLY8X1803111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2fa68ab609887cd1cca57367c299f3355160ed30f6610f50c2f7d89c0f459f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLY8X1803112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fb842cd9d9eae89c1b5d95994d0369d54ea2dee28df445b57280c798df756d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLY8X1803113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6ce59a39b2906b618e15fddf7f92d9d9b93cec2101a69f2cd1f254a79d3bd2. 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/NLY8X1803114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae23cf49d19801fac234c776ee8dfa47f4e89da732930c67c11fe5e39db07c7. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLY8X1803115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cf110a84c0bcb13cf984d83b0641a91ea10ca42de4b121c16e3209677eb699. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLY8X1803118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4996bcd79468bd2517008d56c83346cd9ed1b830b4f3b99f76b0f19902348493. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLY8X1803119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5331a66a2d063ad404cccbe8c3599d35683fa4e44cb1323d861e79b8c7b337. 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/NLY8X1802226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1306b2b4fcbd5dcfe801d22195be70b97adb5d20e1aea6c007fe0498fbd6b147. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLY8X1802227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e804df75ced48a7902718610b70e34c3afd33434dd97f90292abd211edca569. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLY8X1802228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240a40c530329cf34a7711dd74e4984d946a37706e70cd9ee47edd85bdd51c79. 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/NLY8X1802230.
Christmas Collection I (What Child Is This / Away in a Manger / Ding Dong Merrily on High)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20319b0ebf2e4efeebf2f5a6f96fb304a912a898719875c1a8f66fcde1c39d8a. 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/NLY8X1802233.
Christelijk Jongerenkoor "Deum Fidentus" en Orkest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bff16959b5baba7af5db80f6c3f71b9cbb850e911c615e0aa102c21f149d77. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLY8X1802235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c35a9f331fa1b4714ccba9cf93e3242da325043728d4839965edb5a3f0324c. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/NLY8X1802236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af37427cef5c36cac989f6537b686e935e254f732f5fb106d6a0a131619d494. 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/NLY8X1802242.
Vreugde, Vreugde, Louter Vreugde: 30 Liederen uit de Bundel van Joh. De Heer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2637243e9aab1efc9586c3eba4ad2592d5ec1ae86cfff6ee3fa93009f38cea0. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/NLG620594251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed416fa569dcdcc6787a220b139e8463081b23e2847f1ed34a4cdccecdbefcb. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLY8X1803027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb445b09a2b493e41b0ef1def06c05aa7e4df4499fdaedf34f68e7564a414735. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/NLY8X1801287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766dd6d51e33ce1f72d683e2b46444eea7d8fc1236703250465974d2bc279ade. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/NLY8X1803078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9a86cde99ba821a82ae1954d7712fa40685c574dea832ea52abdebb2ec6677. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLY8X1800687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8d4baf37afc8b495c4ecd5459ca75a2572da9d363d3a474ee6878dfb7a60a0. 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/NLY8X1800299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647d95b5c4a32660d4b6962f75f810e6cbd9a0a81e7e0b3dba17300f222ff8f4. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLY8X1802687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c1b5205dbfe604781d1570585c15497e9d11e90369ae980829cd818e8a57ea. 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/NLY8X1802690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf3436a65e66da0b15524661c9a716b2981c15cf329948b50816eaace9caf7c. 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/NLY8X1800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0a8f9bfc7e13d940a46ffa3b256b7d79b2aed67afe7a6a64608fba4d1af294. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/NLY8X1802684.
Te Deum Classic Collection, Deel 8: Heer Wees Mijn Gids
Het Is Volbracht! - Passie- en Paasliederen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dc0928efbcc66180b182f12f488e090b7c9aa1c2b9ab5178317c1b6cfe64d0. 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/NLY8X1803522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d38dbb79a3b3254362bd1699aff4c7cc2a240a62abcb5183b29cc6f74d8621. 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/NLY8X1803523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32567631ef934e81870795ab5092afbc86a3746aaf83e0c067fdb57d8b4d33fd. 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/NLY8X1803524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff7492ec89146f21d1acc452051d6d2f91b9cbc2325b0f7b002f3bd1be25f3f. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/NLY8X1803525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c0e78d92d7e372fa619c26f78d1c50ac838b8f50ae9d2fa1875558a8f5fd0a. 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/NLY8X1803526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328e2f977f6d90d91429b41b22cbf841b4fa4e73e633838427d2ec9c05c546d1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLY8X1803527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f5539db5212f5878f17fad997608397df301ff286d70fa1c48a9450485f0c2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NLY8X1803528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687d85550227b65da3c79f2360bd8a9a33a8b72fbe8f45672ee7015bbc331dac. 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/NLY8X1803529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645f22f48f65c4af68e09cd10a737fc15191e45c784868cc92c9143192c3f60c. 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/NLY8X1803530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9076a61e2a90930f0f2b97bb55043f611198541a368b6e158ac5c595ef20d9f9. 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/NLY8X1803531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65a9406b334ba9c3bf2b9d57214fafa12b8cef05dcca3fc7960af9e5b966c01. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/NLY8X1803532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d96df365f92f1133a3d17d3acf902a4a5834e0869bef20bb1aa411482bfce1. 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/NLY8X1803533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a752d1d6da491b4c8111ccb8a42f55f37d5c1e644ae7b20b733918dfef909fe. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLY8X1803534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a6ee7926e291ea5cd0cf171b6d91d19abf532ef0f2c4242c4efd259a717af6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NLY8X1803535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0acf9e437dd4e8880e75a9f92fe7017483e873a1ab7f93d4a67064c3c89d8ef. 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/NLY8X1803536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25092bc3ab80a4244388f926c7d1fa3b3ca1a587c443dd2e0fe7bfb772ab67dc. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/NLY8X1803537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0af107b1eedf00243c5cb5ab5d65ac7176f9e0e167e64c0ef08bae384d926fa. 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/NLY8X1803538.
Traditioneel Doelenconcert: Passie & Pasen
Christelijk Waddinxveens Mannenkoor De Gouwestem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96476541beb6fbb2a57bca0d831f654c7c2578998ddb425f1f53754d7946a14f. 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/NLY8X1803399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c543f6268bae334941596587883422ac914f9ef7d24f4315a533ac6b599132. 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/NLY8X1803400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf6f52615e0802b5c85507cdfc119fa7584e322087357d39c6cc08dfc772c96. 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/NLY8X1803401.
Paasmedley: Christus Is Opgestaan / Wij Gaan Naar 't Beloofde Land / Geprezen Zij De Heer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b377f449cb5a4aa4d868c5552ab3da62b5169904dfa67a1d6485bd14395989b. 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/NLY8X1803402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d4da792f2b08b1fbcf0dafd884ce11e676de3721a24eb6b0c796e9da24a638. 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/NLY8X1803403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192c76f0e6729aab60037143f947dd48ce9a791aa284c2c85e04dd69af095317. 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/NLY8X1803404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffb941acecdae689e03ac1481272d4cc51f338cbee30261753d56a29ae984ab. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NLY8X1803405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e39dc6760fe4a776096d797aeaa2b50b6bf77c174e6b926248bb1524e151e57. 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/NLY8X1803406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd875d2a76d809a27374f48cd60b0083a16277d5fd8f044af0af0250b4bfb00e3. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/NLY8X1803407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6fc2295c9c84a31e93ce99bc44951d5e5dc9803c73f0bca09a4c24cddbaa7c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLY8X1803408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d745648f9273ea44d229bf102a4e4cc29d7bba69d0d101267fd0e0adeaa213. 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/NLY8X1803409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76ad324f54dce65835372760d529a20e357dd22e3ad093e5e73549d2ddabe69. 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/NLY8X1803410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a91cc11b5625a1cef8e27609e9e74a400522999cbcab4c71ecfc9c4370c55ca. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/NLY8X1803411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbc68e1744999519affc1f92e35d7caa6d7c6423b2488fa9431b226ce634371. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLY8X1803412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124f4c5c2d7f83ec3b32436beddbe70c54cae719a851007273a2833739d2a138. 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/NLY8X1803413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69025064b174dc2736dd1d659a4b3af20f1dec1a52762d0198f6f4a96017d1d1. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/NLY8X1803414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3198f258c1c14f2ea9328cc8dbff1f8f49aee7b9728a026227821de146956c56. 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/NLY8X1803415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0aca7e80aef60028b40fbf75c2822d4a55870767e0bf9c53f4de8d6234e765. 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/NLY8X1803416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb273ea54aa5ce471c567ae492ceedcf87145ebca1025054eb01bde34699dee38. 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/NLY8X1803417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf141265b014da96c9b0c4e0c1e7cc094ff08dcdab7de2cbda67960e3a01877a3. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/NLY8X1803418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b64d809b870584ac7680fbdbc4b2b445c3ac63f78aca4fbe938d0f264e21c51. 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/NLY8X1802165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff576ba1d53a046cd2e73fe5467a861038ea8fb1ee30ef5e699f4db6f721ad6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLY8X1802604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195f99e7677642640bda89a9ea8003ab3f9cc8d61f5d7658fd31370208e6f51f. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/NLY8X1802611.