Verlaat may refer to: Frank Verlaat (born 1968), Dutch footballer Woerdense Verlaat, town in South Holland Boterdorpse Verlaat, lock in Rotterdam Nieuw Verlaat, station of the Rotterdam Metro Berg en
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 0xea43ce7459ed4f4a7c84f5e02121e60e6ceb22b0bf3a3b1f819a19c76ead406d. Chain 2 (Bitcoin): anchored in block 953794 (2026-06-15T13:43:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfcf093e-b1b6-44f6-8f71-1e14ee75cac9.json and https://artists.proofprofile.net/proofs/artist/dfcf093e-b1b6-44f6-8f71-1e14ee75cac9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x68050d8a874761bca7bee99cd1f5ac2c8255622873ce8d0a213c8cb7fe990546. 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/QZNWW2461097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247e2b404dfea2de94175413ee1f74aef2702c8c241f20a8cfa7a1b2e150fbe0. 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/QZNWW2461098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c624438f323c3b8f50da8b897e8c6a9808ad1986de744577962952b2794244. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZK6F2400798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c624438f323c3b8f50da8b897e8c6a9808ad1986de744577962952b2794244. 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/QZK6F2400798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3232ff4c1a0e7d6ad1801a9e11209c1f7b82b0b6982fb7c083bb73ba689ad54b. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZHN72273828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38442faece9c1cafe6252063676263958ad86175d24dde65eb14e1d1f2bdee44. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZHNA2288338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641eab5271a98edfe5a4f3747f284a1327b0fa1b7773ae99e5abe1db83466be1. 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/QZK6M2290861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e32dd2c6ad38e2e3049722182f052b34142087d43853ab89fb4472806056fbf. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZHN42168936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ea297cad434d51a477e890fddc1c5899aa5b4754cf4c3ab2e82e89247d1045. 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/QZK6J2251133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641eab5271a98edfe5a4f3747f284a1327b0fa1b7773ae99e5abe1db83466be1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6M2290861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3232ff4c1a0e7d6ad1801a9e11209c1f7b82b0b6982fb7c083bb73ba689ad54b. 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/QZHN72273828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38442faece9c1cafe6252063676263958ad86175d24dde65eb14e1d1f2bdee44. 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/QZHNA2288338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38442faece9c1cafe6252063676263958ad86175d24dde65eb14e1d1f2bdee44. 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/QZHNA2288338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3232ff4c1a0e7d6ad1801a9e11209c1f7b82b0b6982fb7c083bb73ba689ad54b. 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/QZHN72273828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491e42310c818f922c1d8b59b6fb8bc85562c23d008313deaa2013b3d96559d6. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZTAT2164862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ebccd26d30a104a630db08389ab223baf37a05dd3c5dfbb5f618c1b89cdc85. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTAT2164863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2897769a29ec94d7aa6a4f361e322216c426b22559e090ee91f8e0d3d1de9e96. 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/QZNWV2081340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ede1aa6733daa4c667856f81595b29aada303307a52d63fc0f32fb9fed3dec9. 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/QZHN92138650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71716d9b1a8ba5452c90918bb8b2621307ecc95ddaa102eaad46111923f8cd5. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZTAT2164864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd044958d41511eac1f8ae74d9381f1108ad1e65fded0071bdd8a6a406a5607. 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/QZTAT2164865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ede1aa6733daa4c667856f81595b29aada303307a52d63fc0f32fb9fed3dec9. 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/QZHN92138650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e32dd2c6ad38e2e3049722182f052b34142087d43853ab89fb4472806056fbf. 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/QZHN42168936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2897769a29ec94d7aa6a4f361e322216c426b22559e090ee91f8e0d3d1de9e96. 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/QZNWV2081340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82effe17d773b88d3be27e9c0d370929efb883acab546abbbba3ab7c53981a9. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZK6N2063564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc232047544e42744c502a0d58f14b064c5df8f715c6298fda0e33290125813. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZHN32066496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe308a2f6d09888f7edf5d3373a0ce69a0b011a4b3c7fe43c7656c0356f2ed997. 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/QZDA82065861.