Alexander Goodwin Pierce is a fictional character appearing in American comic books published by Marvel Comics. He primarily appears as a supporting character in stories featuring the espionage agency
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 0x9e6617b8c6cbc5f4e58d6832ffc266558555d7c91174b8be087819fb0b8b52dd. 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/7153c143-2a86-456c-b871-d1d090458506.json and https://artists.proofprofile.net/proofs/artist/7153c143-2a86-456c-b871-d1d090458506.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 0x94e3b00e9e7abf26c463e868728566ff28c99fda7b24678e0b30e007b6d86198. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR59R1912536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f6b40f99b2af736ad860e0c1d0c64a2a1f5d77f1cbc17d58541c0ebf82e966. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX762101435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b2e464019c6ab97d2cfb8457e31696336c98ffb07de4f5f0246b3169648f7a. 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/FRX762100850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223dfd0319cf07ea7471e636701fa89ec244e3b2fc2bb17a77b3d2d73a3a7401. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/FR2X42281078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45eec31b5a850483e88c1438d4745e626d552c5a2292bedf722f14fc4fdc290c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FRX282328088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cb2fd7c682c588b06520a487727e12af0adbec951e51f57f4fbfc293e6a26c. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/DGA052311336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79180a4e4cef7048053c6639913c4e4b7069d836aebf9da7b4a69ef3cbd34636. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FR96X2237222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a660c9382f88c82e8a15e3f6e32d6d394ef6be85a4807078800e689a50b4a11. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/FRX282263735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5839ab2c7896ab8dfea1c1a55f124fea19565cb91edea58a8b73f95bfef853e. 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/DGA0M2300338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c33f8085a58e2992795e2f79fbb06ea106a48b96abbde91c3a260545d9cfa20. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR2X42550885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11f9c076553055310f77f9c4d8e44b529a0c979165d24ec924a497160214c6a. 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/FRX452548155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d823d6a7f167334b2f87f84f4914452fde78e8656b74d5e94a6b2e6749804ff. 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/DGA062534678.