Peter Dennis Blandford Townshend (; born 19 May 1945) is an English musician. He is the co-founder, guitarist, keyboardist, second lead vocalist, principal songwriter and de facto leader of the Who, 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 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 0xbbf1d20a9f4ba931e36d3f0405f3643e9ed76068eea4c3a9eaed7b47786fced9. 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/57075daa-92eb-40f2-bb11-56c65f5c1a75.json and https://artists.proofprofile.net/proofs/artist/57075daa-92eb-40f2-bb11-56c65f5c1a75.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 0x9fbfda9b06c72457fd952b53eb77138a9675ba0891d3782325ea7a8f7ae7ff26. 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/DEN961403740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b2d387333a96be78785a0340754244e4bf66331027fdf0591c76bb77710c50. 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/DEN961403750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc365728d4e11cd3f33512c87a13c32a1bcadc1466004653ab78a2503b86f2331. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEN961403760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25351f34c5125fd32a4ddf6969adae335e63bd336e35ff8386ac24c6383c8239. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/DEN961403770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3ddb8209f317389a6594f453bde0523b58cc5435a29faf1e58ed28c9034bdd. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEN961403780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1a61a662ec675453df50e82895f93b1c0b5a58a3284bae3fcb2bf6da387215. 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/DEN961403790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ffb0a430e5187d5042d89940192f5d42293cb4cfae9d91982bb5ed5a23bbf6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEN961403800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d35b7edaed9f1d94a98a2edfaa949878db950b51c243e7b940ef0f96d9d2f94. 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/DEN961403810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7287622c146a80f290e0db888b6abaf833de8017671accec7e166926bd2ac48e. 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/DEN961403820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399cddc3e05c8dc71bdea79eca1aa617be22fa466b8391db62784e213fd8da92. 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/DEN961403830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c1bb55bced3da9d40acd4f88f750fe9679a7278d176e76d712f077d83cd551. 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/DEN961403840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbff1bb52d1d256be62728ee100c796cdf1a954cb4977f859115280467fdabd0. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/DEN961403850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2bba385378ede9e3623e2c3b254a9d8334157aea63fb18dfe81b06050127ed. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEN961403860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97ae8230532e74632b6fdd1480fe3784962b38d7f1df5dfe5c8a1a16a377b32. 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/DEN961403870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13a19ffcfea29fdd6f218f10269fdb56a958779a3cb1a5f3062205e8ddcaf6f. 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/DEN961403880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6677365f9512d0759aee292c448aab2feda1a96b82967547e349e426390ed95c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEN961403890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf315cedc3789ad1c8289132cbf424e1846ab795a1ae7289fe29e21c6f77dd7e2. 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/DEN961403900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d835fd3cb5df01e66d281a1eb064e4651b2f39e601d58a9bf49803c7e4b0fc. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/DEN961404300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f06e0f2180043a146967700f24f67261bc230583821581c0c5b942fae85850. 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/USAT20100707.
The Americans (Music from the TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c0c59f59e04fbb7af3eca741466f6b2950cf261937866ad030f54f17b4fa5e. 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/USFM91400079.