Christelijk Waddinxveens Mannenkoor De Gouwestem
{"copyright_id":"0x8489fd8b3723f68b7889d4a70eaca2f043ea978f731e87ba7e8a3b337c57fec8","name":"Christelijk Waddinxveens Mannenkoor De Gouwestem","registered_at":"2026-06-14T11:58:17Z","symbol":"NIM0445823","token_address":"0xfe1d983bd3bf75e1db8af954f8df2054c111dabc","type":"artist","uuid":"47f768a4-7e1e-41d6-8ba7-89a52a5bd357"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8489fd8b3723f68b7889d4a70eaca2f043ea978f731e87ba7e8a3b337c57fec8. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47f768a4-7e1e-41d6-8ba7-89a52a5bd357.json and https://artists.proofprofile.net/proofs/artist/47f768a4-7e1e-41d6-8ba7-89a52a5bd357.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Christelijk Gemengd Drechtstedenkoor Praise Him
Traditioneel Doelenconcert: 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
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 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/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 956349 (2026-07-02T11:34:59Z), 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/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 956349 (2026-07-02T11:34:59Z), 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/NLY8X1803404.
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 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 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/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 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 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY8X1803413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3198f258c1c14f2ea9328cc8dbff1f8f49aee7b9728a026227821de146956c56. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLY8X1803415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0aca7e80aef60028b40fbf75c2822d4a55870767e0bf9c53f4de8d6234e765. 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/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 0x7a91cc11b5625a1cef8e27609e9e74a400522999cbcab4c71ecfc9c4370c55ca. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:08:11Z), 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/NLY8X1803411.
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 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 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 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 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.