Massale Samenzang vanuit Kampen & Maasluis
{"copyright_id":"0xa6cf66fcc6490184a0e901d7bb56cb81b4135b41281f65dda2c1c7e10dcf36c4","name":"Massale Samenzang vanuit Kampen & Maasluis","registered_at":"2026-06-15T04:47:22Z","symbol":"NIM0686618","token_address":"0x780332a495c736e48adb076756d0a4df8a3fa6d5","type":"artist","uuid":"e7d4638e-3d21-45c3-bdf5-c8e3d3bddfba"}
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 0xa6cf66fcc6490184a0e901d7bb56cb81b4135b41281f65dda2c1c7e10dcf36c4. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7d4638e-3d21-45c3-bdf5-c8e3d3bddfba.json and https://artists.proofprofile.net/proofs/artist/e7d4638e-3d21-45c3-bdf5-c8e3d3bddfba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Psalm 24, Vers 2 - Heer, ai maak mij uwe wegen
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 0xeb80405b826b932005b0185b258c0efc74c5993495ba25c359f7e5525594bf7f. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/NLG620593632.
Psalm 56, vers 5 en 6 - Ik roem in God, ik prijs 't onfeilbaar woord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbfebec9c3ede1ddb6fbdbe1148284a1003820e8fa192e955bf6a58e250c3e5. 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/NLG620593639.
Psalm68, vers 2, 10 en 17 - Maar 't vrome volk, in U verheugd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf905f7e82362d6677f76ca513749ef134443ac6015a5f44837102683a03f2f7a. 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/NLG620593648.
Psalm 51, vers 1 - Gená, O God, gená, hoor mijn gebed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb762c8d6341d8a22ff3f4c06b6a7cb7bafa817655a868942ad0684f3da493a85. 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/NLG620593653.