William McKinley Brooks III (born July 22, 1953) is an American former professional football player who was a wide receiver in the National Football League (NFL). He attended attended the University o
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 0x5456f6688c9d0129c509656b8a8ba3d6bef407dc0da7823feff12f592ddad7f8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1da4fb55-b98f-4ced-b45d-e8119c434ba7.json and https://artists.proofprofile.net/proofs/artist/1da4fb55-b98f-4ced-b45d-e8119c434ba7.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1957476d7c36ac6ca5c8232b90781865d33dfccad236db3ee969d1b14d1fe6e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:31:29Z), 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/UKCHV1500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02dd74c42dac598f223600dcc2884f278c9f28bb1e97f1a6bf6d8b0b1c2b3c9b. 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/ES7710744801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d87a954e11db23bf37a0dcb367ebc150e7595d717f1f86163993be055f763b. 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/ES7710744802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f83bf2fc8743d4f013a8e888758b25e38b1e141b36f8cb78a3c831f7d764bf4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES7710744804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dc5b769311cec5b98148193cd6333005b8fb592127729968280469a89a12a3. 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/ES7710744805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d2b8fa8ff840a659d328cfdc6e634e72192f391ae718118c77c831f960a5d9. 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/ES7710744808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f25943beccc270285b5a97ac613cc9e6319313b42db71997d5b8784adccc1ed. 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/ES7710744809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cafab0e9bd30152dad0b6eb8d859118645d9d1b41eb8a1b63995e21568075f. 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/ES7710744812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697db7610bd55550f44fde87eff19f37f9ba7eb1a4332ce56b5b6688d42ce09e. 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/ES7710744814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6ebb560dc14dbb1479072ae38b0789a48c4d675b756564aa93fe7789c4d233. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/ES7710744803.
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 0x7fb77ce7225301232ffd5ac0087df81250a62f08975e47c1daa187100bb7e031. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ES7710744806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23266421bff225fd20a204403c2b3b6590c985a4235a2e37e0bf4bfa6cec4531. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/ES7710744807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a5cfd0ee000584599cfe17f12d800e01c39c2318f9babe9912f359671b3bf8. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ES7710744810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fa3355f6266e8603d80e7159ceef7cb3a5a8b9887e3aa61361549facdf6ea9. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/ES7710744811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17a64544fc97b5c979b3dc71fbcedc842984544255391c271b7908818dca1df. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ES7710744813.