Pith Number

pith:4K2ODUIG

pith:2017:4K2ODUIGDRGGTIN7MNWGFALNKI

not attested not anchored not stored refs pending

Free Information Flow Benefits Truth Seeking

Wei Su, Yongguang Yu

arxiv:1702.07637 v1 · 2017-02-23 · math.OC · cs.IT · cs.SI · math.IT · nlin.AO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4K2ODUIGDRGGTIN7MNWGFALNKI}

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	2026-05-18T00:46:18.474066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2b4e1d1061c4c69a1bf636c62816d5217a8a19dd4aaa60150ba1d62f07a29e7

Aliases

arxiv: 1702.07637 · arxiv_version: 1702.07637v1 · doi: 10.48550/arxiv.1702.07637 · pith_short_12: 4K2ODUIGDRGG · pith_short_16: 4K2ODUIGDRGGTIN7 · pith_short_8: 4K2ODUIG

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/4K2ODUIGDRGGTIN7MNWGFALNKI \
  | 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: e2b4e1d1061c4c69a1bf636c62816d5217a8a19dd4aaa60150ba1d62f07a29e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3193351e4a381df768d96da4a254cd2477dee437b32469ee50f985a068f3cee4",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.SI",
      "math.IT",
      "nlin.AO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-02-23T02:48:27Z",
    "title_canon_sha256": "775bb26e0ec3b96a27316b50b4019e8770659bf8ab4533a4715725d1c531536f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07637",
    "kind": "arxiv",
    "version": 1
  }
}