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 0xb4f00735a89f8ea2b288d97d8b007987eafbd6ac52b155691df1d844c54fad89. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86f27615-8336-4ebc-ac2f-3ab5127b5210.json and https://artists.proofprofile.net/proofs/artist/86f27615-8336-4ebc-ac2f-3ab5127b5210.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Benediction: Instrumentale lof- en aanbiedingsliederen
Geliefde Liederen uit het verzoek programma "Wens"
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 0x5adb8b8256268da779c4665a922289340c71f6ca7cb63581a81f0639d81d061c. 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/QMBZ91613018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468119fee0ec4b2d66bea91f5df953a9a6254bec2f0645113ef00cec0319d07e. 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/QMBZ91613024.
Opwekking 674 "Zie de Stroom van Jezuz Liefde"
Chr. Gem. Zangver. "Looft den Heer", Notter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d9f54f89294ada282abaea2ce39a1ee109d6071db785117e0630c95fc5f57c. 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/NLG620584610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7acd74f2f06e7877ea4a0d39b5ac821a1633f42551fd31e39f5a71f1cd84191. 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/NLG620584614.
Opwekking 392, "Mijn Jezuz, ik houd van U"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0997b4c274824926d7c2f40d4894d692936dbbb97b2254baa8ea086216acfe0d. 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/NLG620584615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba89362e0e4487cf6a425cdfb3a963424e382fcfc2aa8b640e9a2e8ff6a4a90. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLG620584618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124fbc206684e5ef3547085a6a90a142fec9fabadca8d0a9d5783c676bc23d41. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/NLG620584612.
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 0x625afef130b9d1ddd0241dcae902834d0fe9d5fa7a2be72ec3552eb5218fe914. 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/QMBZ91613050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4875a4ef160f0eedb5e8d4de235ebc96e93c1c8d804068bf2a8853cdf778c881. 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/QMBZ91613039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c61d29791d221c119dbb85fac462cc3c24c4dad76421ce882d44ce0824b730. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QMBZ91613052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce0d098c78c788bb1acea8fec13863c30e0e98b4f2783f275aadad4a6dc4720. 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/NLG620584609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bbfdccdc225e809fe5dd1eb7640271a23822f479a088105266450ef5c9e982. 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/NLG620584611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6a47be4e0d728cfaf288a903f8427f7ac6a7caa4c6fbe2897d25c84adfa1d3. 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/NLG620584613.
Opwekking 176, "U bent Mijn Schuilplaats Heer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9172fec591dfaf8d642b1494619b5ac3c5415d3c2bf0c020a16597f4cf69ef0a. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/NLG620584616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9741a78015019c86f04b945eec29cd588b02731a703623496d10c6b0176c8172. 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/NLG620584617.