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 0x409607f5a35977dc5e9d8d1b2f6ed101244ff6535e787f9aae7f38dded3c6d4f. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/446066e4-f5d7-458e-8f66-0651ceb38eb6.json and https://artists.proofprofile.net/proofs/artist/446066e4-f5d7-458e-8f66-0651ceb38eb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prijst Hem In Uw Psalmen (Jubileum 20 Jaar)
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 0xef4a5921fb2740cee95e3a945620d3bb3e98850e45c68dcaae1790d0e1a62c05. 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/NLL6R2000333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5854603ed1147efa1df81242eb11078dbd2c9b03ae59301026906d942da2dd4. 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/NLL6R2000334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282bbe753be1001fb91f5b0325293e9fb34b0d2b89eb589e4e519fadc74cdb09. 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/NLL6R2000335.
Psalm 121 - Bij U Komt Mijn Hulp Vandaan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36cf6457dc086d8f917baa46a0577a041cd330ff4a1970b76dc443c5bf6850d. 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/NLL6R2000336.
Psalm 143 - O Heer, Wil Mijn Gebeden Horen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa707e74d8ce1cdc5f6ff74c76c8291f1a40c6edcf44d383661a34adaba100c23. 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/NLL6R2000337.
Psalm 24 - Eigenaar En Maker, De Aarde Is Van Hem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe073d8bf08173bb93d0e88935aeed9df205dcfc7e2f1fe051c2129533e5e2032. 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/NLL6R2000338.
Psalm 22 - Mijn God, Waarom Hebt Gij Mij Verlaten?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc3689524acb3014e3f93498dabd6e8052024a080f2d5467019b070d95ec490. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/NLL6R2000339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc179cb1fbaf69c3eac19685b89c898ada80edb8cf1e8897e7c0b97231b971c0b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLL6R2000340.
Psalm 32 - Welzalig Hij, Wiens Zonden Zijn Vergeven
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb023ef391cbf32e481da09e0016d6d1b54891fc8f0afea85bdf70decd30e7d2b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLL6R2000341.
Psalm 42/43 - 'K Blijf Hem Prijzen In Mijn Lied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381246601408d922386b1dbff6a1f9c9867e3ef06dc17b74ba25093ecee397e5. 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/NLL6R2000342.
Psalm 9 - Ik Zal Met Al Mijn Hart Den Heer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e4ae97c1b65e090a1bbdea45c1555b23c6a220a04acfd13f9d525c6cbed98d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLL6R2000343.
Psalm 13 - Hoelang, O Heer, Mijn Toeverlaat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a51fe9b1cc79a62357b4c2418f6704776562d28b99753ba921135f0970c1a75. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NLL6R2000344.
Psalm 89 - 'K Zal Eeuwig Zingen Van Gods Goedertierenheen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49804f00878127066dec43a44dd1ef45b6de807b2a26cb390c0097c14887e72f. 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/NLL6R2000345.
Psalm 40 - Brandofferen, Noch Offer Voor De Schuld
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b79c87c4d5a2eba6a5634e86826b43e90115970c25f0223ecd083f3a25070a. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLL6R2000346.
Psalm 5 - Neem, Heer, Mijn Bange Klacht Ter Oren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb6b5b8dfc04a17990ed26b40706c0e11656d8f234a57a49697f4c8e000c00a. 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/NLL6R2000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca1864f60778d380b301392f76a17c6b7ee5b9c80bc0d832b780077f21d4d9b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/NLL6R2000348.