Pith Number

pith:6BOJRO4C

pith:2013:6BOJRO4CYGG63DW4Q76544LCAS

not attested not anchored not stored refs pending

Problem Complexity Research from Energy Perspective

Feng Pan, Heng-Liang Zhang, Qi Jie

arxiv:1309.3975 v1 · 2013-09-16 · cs.CC · cs.IT · math.IT · physics.pop-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6BOJRO4CYGG63DW4Q76544LCAS}

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	2026-05-18T02:32:22.589017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f05c98bb82c18ded8edc87fdde716204aae48e112cdc73348b00966d2eff8489

Aliases

arxiv: 1309.3975 · arxiv_version: 1309.3975v1 · doi: 10.48550/arxiv.1309.3975 · pith_short_12: 6BOJRO4CYGG6 · pith_short_16: 6BOJRO4CYGG63DW4 · pith_short_8: 6BOJRO4C

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/6BOJRO4CYGG63DW4Q76544LCAS \
  | 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: f05c98bb82c18ded8edc87fdde716204aae48e112cdc73348b00966d2eff8489

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48ff9ba9b8988e65c6825550a0314c0a5a9929b02c12d1c303f61361f27b9d4e",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "physics.pop-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-09-16T14:27:52Z",
    "title_canon_sha256": "56d7c50660c4d5c9933ef779e701634775d4f1116cfd7f6c255f1fef0399019f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3975",
    "kind": "arxiv",
    "version": 1
  }
}