Robert Francis may refer to: Robert Francis (barrister) (born 1950), British barrister specialising in medical law Robert Francis (musician) (born 1987), American singer/songwriter and producer Rober
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 0xb6d8684df8ef607c5d6e67324b221ac3b0839b4777b64bcfe3e52facb4005568. 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/a49fbf66-b3ae-40f3-965d-9541801026c0.json and https://artists.proofprofile.net/proofs/artist/a49fbf66-b3ae-40f3-965d-9541801026c0.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 0x43f397b614301a7bbe312173c65e7adbb54e5f680b3996889d5476e763b2582c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA2B0756803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fab8b4d94b9a21e1e6674990f8cc6a16cf1a78c80f7357be3f79dac9314533b. 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/USA2B0756805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24b2262ec397262489ee53459cc39cfc3d01b5742654214af41ce628bc55295. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USA2B0756810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75367864d0a4a1ce9d9f287853936422d60e72e3d5abddb2ed193a7fdbb2ffca. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USAT20902379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28758333c50d5ab1f61a507247fe9c93a9554ec0139f7d88638a7c68161a266d. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USAT20902381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca95b257be34c8ae507ebfaff0525bd2ffa86fc73adcdba4b142105dc266db45. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USAT20902386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab68e4037ad83cf3ade5ca1a2685a244caa5effffcc00b9a8379925b5c93c859. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USAT20902387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd090864433338d7a2ac3a4208337d45269cc885084ae1005588998ad6adbd4c7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USAT20902380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0d8f1fa777358994186806604ccc236148cf63579edace1f7a935c57b7fea7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USVG21203051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e624d1d5de971963846a1ffc05fe787763becf6d5e41110e3855709e892ac3. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/USVG21203053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519a78ac559775d78d1e6076d2537d7feb7d3b20e6d0b26c7b6e8d3c17041aa0. 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/DEU241400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffe77726955005f6e720561c9824058e7aab08798916b8e0bfa2a76cbb44ee9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA2B1401346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1432710d1370b9db3bfff9ae194189a4ebd90af2b43d6bb9fec9bc5a4c6c97a4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA2B1600574.
Frog and Toad: Season 1 (Apple Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d7cd4cf0e54a81d660c2866abd5aa83c7a42db45f865a56ff05a92478848b6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US23A1563265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4202ade90ce6f203b5c0760f9a5c3c03d04844836efe41a2296a529776e9568. 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/US23A1563266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdf3252de956ab850eb025335db135a2dd431da8fe9fb54aec5adf8a9c27853. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US23A1563267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc104b349890f13f56edf67565b3838977a592d934f509e3f6adcfbbf89cbbfe. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/US23A1563268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d656d8ca2fbf06b264b2943bb9480304a332982c7c23b3a29d908b99a8fcd1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US23A1563269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb147c53e537cdc90316be333977b9f507433448b9c1a36fe72c90780b6d2a0. 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/US23A1563270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294db95ebe87249bc6c966c9c150dff9c149acd4d85de61da8ee5157f0ab7eec. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/US23A1563271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4382c268ef3079b485595f24a0ecbec86c4b184007b3b2cd302e718032c8e1. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/US23A1563272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ec60b916117dec0372e874fe14bc588d4d2db8888ab417eabc727c536c9c2a. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/US23A1563273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1801196a4ade932e9d3474f5cfb55569a1ac0bf0577634f092fe12a453a18c89. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US23A1563274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1270d95f7564ff21d0673e00cbce0ff6c5a87b27d5c93d6002246a1f73aa4ed2. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/US23A1563275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71730b6ee0173f790aff69cedf3567ef1fccbf8b0f89519c0479a89f9487289. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/US23A1563276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015aeee69d8d667baf02a8d0a582184a1368abd4c687a7724abf04ba30fca8ff. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US23A1563277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4273ea73dd9bccbeda723839c4299338e54ffa31bc951b4a39f19552eab0ba36. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US23A1563278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ea7b27f3aaa47a8e14ba3226536e4043ea290fff063fef0517c40b9cdd1b91. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/US23A1563279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14753a0ddd13eec13f993d6f1643009936974515dd37ac0bdee3dc4bb9d8b596. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US23A1563280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62455e96f70b045e8a18e0a120507ba1b661575f1d69b81e2efa9c8152d7a3d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/US23A1563281.