In fluid dynamics, the reyn is a British unit of dynamic viscosity, named in honour of Osbourne Reynolds, for whom the Reynolds number is also named.Juvinal, Robert C. & Marshek, Kurt M.; Fundamentals
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 0xfc5b2692842aee483cb96c2f75cc0448ad2dd538a09b6bda65c589e6f336333b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64da7097-9ea2-4826-a1c7-f72006e9e98c.json and https://artists.proofprofile.net/proofs/artist/64da7097-9ea2-4826-a1c7-f72006e9e98c.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 0x29019883d33ae307cfb5660de69e7534c0fa44f1b680aaf078ff573d78ae537a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/FRUM72002015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d13faa29683a0982a733c92d7bd50e9058475076ab3290acf9df51e2c3baa89. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRUM72100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db05d51b1e580e19d2351b61346de9debbff1bc2fb201cadc545a01d336cd96. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/FRUM72201310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa105b6d1a07703490afa68699506999873e3145d9d636a8e36607abfc388ffb2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR9W12305792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7e78bc67f4d0bd71f0e9e47404d08c42d54fbf0665b29eb79ba153ed1b51a9. 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/FR9W12315071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1ed8e94eca1375550f16095712f16d500d7c5ace7b4f48994145af5510a87e. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FR9W12315295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7e78bc67f4d0bd71f0e9e47404d08c42d54fbf0665b29eb79ba153ed1b51a9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR9W12315071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1bfb73db9c402ec02faa52cda95ba2a133bd2ed165de6ae03545272bdf687f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR9W12325206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aaa690bd30bc4465e02ee9394bd6395fdab0ecf6bc14f16d2ccad4a4be7629. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/FRUM72100433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcc03d9311694dd8528d13c0d7740f48c9c85995e699a2cef2b0f3e329d6f57. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/FR9W12404860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f92bef8db97e68505edfd51614545cf6e1fe492b83615fb2054bd8247fa028e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9W12447482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85576f8a1ee35af7671ec2a0f50982b7f9ef939625aa1635fadc3c4f8a7bf084. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FR9W12447483.
Le Soleil Qui Entre Dans la Pièce et Illumine Tout
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579e6d23eff1fdc6da45f8155904c05f8f29018b6c7e0792933f614c1aa89bcb. 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/FR9W12447484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb06d26bb26bd4703498b8f75e07a44ac95882cfdbfa1cba24b4bb0ff8e04b36. 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/FR9W12447485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89147f043444b6584d459a155718032fbc9a02dd094165fe461991ace1161a65. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/FR9W12447486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47754059c9789b916eeaa8ed985bf0d408ac9262b9e1300c277a35dae3ef4e8b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9W12447487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7720ad9162fc2d03c7360dd52ac2f0562e44863e357c697c6b24ffb24195194e. 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/FR9W12447488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440341240226e51b54e86acfef4b6d6871c13f470b876a705805ab8109c907d2. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR9W12447489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb317ceb72a7a5b27d491d820f5dbdcacba3c6b2d451d32c5f712218936468044. 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/FR9W12447490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b70ff4ab54619bfe3ca8ad178daab66c46ba4f4199a2a9a18f096399322ec7. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR9W12447491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3fa372dd528c9331fa44380d8cfbe4c32a7c01feb57c326ec501a249b3150d. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/FR9W12447492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc3d7448b2990591fc29df22535cc3efc6d1476331c6118f673fd5d804bf5b8. 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/FR9W12447493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d983a0b5c3f06456632d26321f89acb08acaa98af0b86d2ecf11ba4c718c754. 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/FR9W12447494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef7c3561d5741338d8fa5f159b377e394e946ef623764dea88524d8cd15c785. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/FR9W12551081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef9933ee59476bbb087c5c66310a266123a46dba144d169540d43d4145c85b8. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEBE72200008.