Sir Brian Harold May (born 19 July 1947) is an English musician, animal welfare activist, and astrophysicist. He achieved global fame as the lead guitarist and backing vocalist of the rock band Queen,
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 0xc80a6374b745f7a9397d317b3258ca8a41c631d21ad311716bae46e2bef7b668. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a824242-071f-41ad-8fd7-6bfc9edd8ace.json and https://artists.proofprofile.net/proofs/artist/8a824242-071f-41ad-8fd7-6bfc9edd8ace.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 0x5bd418bd3958a0cd9a441205ba32c5a1f30cc3786450cb12ed4aeaf2faf17b3b. 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/USSM19603446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2ed8a1c67e7d7e711bf5930a608ee3446e57524c2c40684c5d901a4a67a8da. 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/USSM19603447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4650d6be3c67bbc28840ccafb5183e42e70e8b088a895dca3963ae3c3d18d3. 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/USSM19603448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6833800b5d0324b12df04bfd4c36f82fca1d5093d069a32a84030f60459183. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/USSM19603449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4d66a06d316948e0f644645dd52bc56cd662d8887423e929656dea590f853a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USSM19603451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4951729d758da5c6bc50284352f4ab26bdd6a99ebde97d3ecb0d86e80900d74f. 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/USSM19603452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d2210f5860aebac4ebae4f4c0f678214c3187f6712c145d05b8fcf8d0d27f6. 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/USSM19603453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02769f6d5aaa30d3a0c209dd6c9535a8555a0b8dd041da25916746e2d6340dc. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USSM19603454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac4070f941db1ac257d536678986870cd18cb1987ded9459550fdc2efdba74f. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USSM19603455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332323d2325c485979cf56b4f57270640b57cdc6982bdb8faef291557c381bb1. 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/USSM19603456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3aa7e2542ef8c41939fc8a29d69ddf5ee3658fa3d5266c7b2763bbb1298860b. 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/USSM19603457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee89e388f88c218a9d78382834845521e96f79e624d3b782c79a6c9c2d7eee3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USSM19603458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320b1846d5364fdc93a6789ad589b4c8dd54bb3a77ed3d695d2e7a033083d9b3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USSM19603465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5ecb0670af7d4deaa312a1473ee8050cf509b83edcad30099c47dc47fc9cea. 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/USSM19603467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e72f4629dd19fe3a193db9efdd4c33e1026895aec155cf8e7f5f339124b8461. 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/USSM19603470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa897bafe2584b7e8dfd2af645428b0d40066948e6cc45051a09f0518705ea. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USSM19603471.