{"copyright_id":"0xded66cd5bb47e9eabbf1bf0093a24a38638abf9d517290f2ebf5dae28bd042ad","name":"Gereformeerd Zangkoor \"Laus Deo\"","registered_at":"2026-06-15T20:52:21Z","symbol":"NIM0828594","token_address":"0x7554f9db8723e7df885c3ab9b73eefd3be5a2f67","type":"artist","uuid":"14c9dc1f-1cc2-4cab-84bc-5513c03cd052"}
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 0xded66cd5bb47e9eabbf1bf0093a24a38638abf9d517290f2ebf5dae28bd042ad. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14c9dc1f-1cc2-4cab-84bc-5513c03cd052.json and https://artists.proofprofile.net/proofs/artist/14c9dc1f-1cc2-4cab-84bc-5513c03cd052.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Proloog "Een stad van vrede is nabij", Lezing: Openbaring 7, 9-17
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 0x2999b5dcad894a454a63ddef6cfeab39fa9bb76bba85d6944457a3cf0e95f51e. 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/NLG620583029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19a05ae8e0edfeaf29b5bc7d486193c2b41f5a4efdf70d3854c054c41dc481b. 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/NLG620583030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae7769838799ce67dcc90568b52633323d8e087b80c3e15a4db358761d901b8. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/NLG620583031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc0fd6b7f7573f93f00cadcf608d4a2bfa8831aa18c471c642b134cbfe44fc8. 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/NLG620583033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38e3427349e2a2ecfd6a78b2c4951b846325a1078521913e0c1a5e654b364b0. 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/NLG620583034.
De glazen zee, Lezing: Lukas 21, 7-8, Matteüs 24, 42 & 44
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a0277cc5305c1b6813547f6e951f6606043882a6ed988037d6817b13b9e811. 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/NLG620583035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2994e4e38bc1419b856c06bfa6776c2f717cbf2a7441c8c0ae22141a57d10fd5. 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/NLG620583036.
Koraal, " Eens daalt de stad waar Liefde woont", Lezing: Openbaring 19, 6a
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb53b47c9ce3d740e158fd1a4ee978d303e3bdea961782e240f07d42d336220. 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/NLG620583037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928b0f9023116c77ea316cd294b84aa5b33f8734bf9a1a46bb22e8a7e14186c8. 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/NLG620583038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb085c8cdb38601285b4c2ac225ecf7be72bc216f058384f9b1581137c621701a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLG620583039.
Dies Irae (dag des oordeels), Lezing: Openbaring 15, 2-3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e5eb4ea3a6406a5e156544851812b43c9c664e393525558c276cbaa3d6be9a. 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/NLG620583040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e81a61141b478d3780c0fc7359948051ed7f1e9605da76e79ba488d6b0e42e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLG620583041.
Koraal, "De Stad waar ik op hoop en wacht", Lezing: Openbaring 21, 1-2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee95f0b0463a9ac80e1c7b4167b08fcfb130484c00076ac3be0ecf2e9522849a. 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/NLG620583042.
Het nieuw Jeruzalem, Lezing: Openbaring 22, 6; 12-13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6656a2bdef4274467defdfb9ebd49536e9a5bb2e92be25ea566d74c0fb762e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLG620583043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827c0d75f69448b5540a2b31d063266435766023dd80f4cbef75b1af59137b19. 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/NLG620583044.