Authorship attestation for "Eth contract data pt 2. Storage tree, cast and RPC"
https://cdrn.xyz/blog/slurpingcontractdatapt2/

Statement (signed exactly as the lines between the markers, EIP-191 personal_sign):

-----BEGIN STATEMENT-----
I am the author of "Eth contract data pt 2. Storage tree, cast and RPC" (https://cdrn.xyz/blog/slurpingcontractdatapt2/).
sha256: 9c4afee0fa8900ca2a0e8ff7426567dd2471b92fb7352d8274d68d1f92cf9b6a
Published 2023-08-28. - cdrn / cdrn.xyz
-----END STATEMENT-----

Signer:    0x34eb878aB45D2a0a7B37cF5728c50E23ac4AB7C1
Signature: 0x2762ad2fcc405c232085422ce58acb606d42e48868ccd61a8f3f06f907ef32295edacddf6c1ee54d0be3394a9e0704513a63965148a6efdefb8a82fa5b5487021c

Verification:
- The sha256 is of slurpingcontractdatapt2.md (the post markdown source, published alongside this attestation) as of the attestation date. Later edits change the hash; the attestation binds this revision.
- The same hash is anchored into Bitcoin via OpenTimestamps: slurpingcontractdatapt2.md.ots (verify with ots verify).
- Earlier attested revisions, if any, are archived under provenance/ in this directory: pre-image, .ots proof, and signed statement for each - the timestamp of the first revision is the priority claim.
- The signature verifies with any EIP-191 personal_sign verifier (ethers verifyMessage, viem, cast wallet verify).