Pith Number

pith:R46K2MYM

pith:2016:R46K2MYMGTZH3VMRE3LFXBARKH

not attested not anchored not stored refs pending

Non-deterministic branching programs with logarithmic repetition cannot efficiently compute small monotone CNFs

Igor Razgon, Oded Lachish

arxiv:1604.01560 v2 · 2016-04-06 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R46K2MYMGTZH3VMRE3LFXBARKH}

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	2026-05-18T01:17:32.209640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f3cad330c34f27dd59126d65b841151d9edd799c106b8d740522c48f7eb64d2

Aliases

arxiv: 1604.01560 · arxiv_version: 1604.01560v2 · doi: 10.48550/arxiv.1604.01560 · pith_short_12: R46K2MYMGTZH · pith_short_16: R46K2MYMGTZH3VMR · pith_short_8: R46K2MYM

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/R46K2MYMGTZH3VMRE3LFXBARKH \
  | 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: 8f3cad330c34f27dd59126d65b841151d9edd799c106b8d740522c48f7eb64d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3af53cef7e96ad138e5bfa611d72ea16527d6973c7e5d336e4d65263b858abeb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-04-06T09:43:16Z",
    "title_canon_sha256": "98fca48257427549047a9bb1bb5c9ed75c02c9f07aa7f419d9acdf055507cf32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01560",
    "kind": "arxiv",
    "version": 2
  }
}