Pith Number

pith:26G3YTJ2

pith:2013:26G3YTJ2EG33LLT37TEN7PXK2Z

not attested not anchored not stored refs pending

Challenges in computational lower bounds

Emanuele Viola

arxiv:1311.5467 v1 · 2013-11-21 · 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{26G3YTJ2EG33LLT37TEN7PXK2Z}

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	2026-05-18T03:06:33.288437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d78dbc4d3a21b7b5ae7bfcc8dfbeead6453f75cc60c2621e9d7e15c992f08c04

Aliases

arxiv: 1311.5467 · arxiv_version: 1311.5467v1 · doi: 10.48550/arxiv.1311.5467 · pith_short_12: 26G3YTJ2EG33 · pith_short_16: 26G3YTJ2EG33LLT3 · pith_short_8: 26G3YTJ2

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/26G3YTJ2EG33LLT37TEN7PXK2Z \
  | 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: d78dbc4d3a21b7b5ae7bfcc8dfbeead6453f75cc60c2621e9d7e15c992f08c04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43ac18f1568ee50673c0c60d06b0ddbf7f8988aac9acdea177e4f91e856ecc97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-11-21T16:28:48Z",
    "title_canon_sha256": "1fa0833af04c547222dc1d1abd6f9051690f9300535952b7bf92f69747c33294"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5467",
    "kind": "arxiv",
    "version": 1
  }
}