Pith Number

pith:IPEPFONK

pith:2018:IPEPFONKA5N6VSVMOCFRCRZYP2

not attested not anchored not stored refs pending

Logchain: Blockchain-assisted Log Storage

Andriy Miranskyy, William Pourmajidi

arxiv:1805.08868 v1 · 2018-05-22 · cs.CR · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IPEPFONKA5N6VSVMOCFRCRZYP2}

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	2026-05-17T23:40:14.173760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43c8f2b9aa075beacaac708b1147387eb0879ae103c836a088f32fd21b266b6f

Aliases

arxiv: 1805.08868 · arxiv_version: 1805.08868v1 · doi: 10.48550/arxiv.1805.08868 · pith_short_12: IPEPFONKA5N6 · pith_short_16: IPEPFONKA5N6VSVM · pith_short_8: IPEPFONK

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/IPEPFONKA5N6VSVMOCFRCRZYP2 \
  | 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: 43c8f2b9aa075beacaac708b1147387eb0879ae103c836a088f32fd21b266b6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c481fefac362c0a708d658e61dc9148ea39b7c850bebc06efe145d13b6b873c",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-05-22T21:15:11Z",
    "title_canon_sha256": "ab524d222985f82c0b23aeeb7f8e0520ef557cd327a067b5c489c248e0cb74a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08868",
    "kind": "arxiv",
    "version": 1
  }
}