Pith Number

pith:7AXDFW5T

pith:2018:7AXDFW5THHVY6IVDOGVHU6PV4X

not attested not anchored not stored refs pending

FEther: An Extensible Definitional Interpreter for Smart-contract Verifications in Coq

Hang Lei, Zheng Yang

arxiv:1810.04828 v2 · 2018-10-11 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7AXDFW5THHVY6IVDOGVHU6PV4X}

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	2026-05-17T23:41:36.883026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f82e32dbb339eb8f22a371aa7a79f5e5d665745f2130141abe47f8edc2beffdc

Aliases

arxiv: 1810.04828 · arxiv_version: 1810.04828v2 · doi: 10.48550/arxiv.1810.04828 · pith_short_12: 7AXDFW5THHVY · pith_short_16: 7AXDFW5THHVY6IVD · pith_short_8: 7AXDFW5T

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/7AXDFW5THHVY6IVDOGVHU6PV4X \
  | 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: f82e32dbb339eb8f22a371aa7a79f5e5d665745f2130141abe47f8edc2beffdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8b40cce40800604837869735169c19d2f703229985ef1655c2f117ede268fe1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2018-10-11T03:06:38Z",
    "title_canon_sha256": "c42b28d090e003a0b34c7833d926162917c85dba49b50ed80149676ad97d03c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.04828",
    "kind": "arxiv",
    "version": 2
  }
}