Peter Dougan Capaldi (; born 14 April 1958) is a Scottish actor, director, singer and guitarist. He portrayed the twelfth incarnation of the Doctor in the science fiction series Doctor Who (2013–2017)
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 0xdf67daf4e602195bce15eea14c607460d60bcbcebc99ea3b292a0038a19584c2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55a0e243-aa9c-4d10-84cb-67d4b4debcc1.json and https://artists.proofprofile.net/proofs/artist/55a0e243-aa9c-4d10-84cb-67d4b4debcc1.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 0x550a9d6cd54b73d2364fec1540c09b192ec0c2a245a3b542311db0d7047c0a57. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZK6H2152170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846b126d2576c82aafe9fd28165ef49cfe81b36db53b3b6d61b5405073d40950. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZK6H2152171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6689d131e1bd1c137e147aa04a72054c403b34e7f07d3668f40ddc86ce945f. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZK6H2152172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f9edee4002da54fe08f6045218879f8162ea02245a3f099e5c8540f05abd8f. 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/QZK6H2152173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5cf62c07f89658505d86c281d7ad9df18eb0d2bbd22c7e305fa6d03941780d. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZK6H2152174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29867c018879091953db42e97388dc44fb75c26011d0a7946ffe3f500338a5a6. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZK6H2152176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaf8de929eed508ee8c3be5233e50c05a55ed34d93d36781c9125786906ce6d. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZK6H2152177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0167b044f3abddf116e9c889b8c8505d1cf65f8894f32f2ca275977f9d2d537. 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/QZK6H2152178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ced240f20674ff97885be17eca36b608566a43cee74ca11f3b4f1232480df3. 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/UKUJK2400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f52e1da971c8fe476e030054b87b72c2cb3e3451fb61f63fd3dfb170228a88. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:11:17Z), 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/UKUJK2400143.
Christopher Robin (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d9ecb1d705df142b01fc47d3cdc4438092099f7a2afe1e31bc53cc7ad46282. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWD11889795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a96debf8beab57837a987e89c13a6339cac7eff5e56b04c537f3f3eb28151db. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB2YG2000017.