Pith Number

pith:CIX5HYLV

pith:2018:CIX5HYLVXGA7PXOWKTM5HKI2RM

not attested not anchored not stored refs pending

Expander Graphs are Non-Malleable Codes

Amit Sahai, Peter M. R. Rasmussen

arxiv:1810.00106 v2 · 2018-09-28 · cs.CR · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CIX5HYLVXGA7PXOWKTM5HKI2RM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:50:48.903638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

122fd3e175b981f7ddd654d9d3a91a8b0c80a48e75c4a66c58ec75df578f202e

Aliases

arxiv: 1810.00106 · arxiv_version: 1810.00106v2 · doi: 10.48550/arxiv.1810.00106 · pith_short_12: CIX5HYLVXGA7 · pith_short_16: CIX5HYLVXGA7PXOW · pith_short_8: CIX5HYLV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CIX5HYLVXGA7PXOWKTM5HKI2RM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 122fd3e175b981f7ddd654d9d3a91a8b0c80a48e75c4a66c58ec75df578f202e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "289fcaa94c3e19f3a2bef215030683e778d1e681ea292df5df7055382c517b69",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-09-28T22:19:23Z",
    "title_canon_sha256": "2dd96f70e5ef5ae54a2f1959fab344f21ea6f8081f7e9589734d57bcd781b84c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00106",
    "kind": "arxiv",
    "version": 2
  }
}