Pith Number

pith:2LES2E2W

pith:2011:2LES2E2WEC77PKVSTUZNJ7V7XF

not attested not anchored not stored refs pending

Four small puzzles that Rosetta doesn't solve

Rhiju Das

arxiv:1103.3042 v2 · 2011-03-15 · q-bio.BM · physics.bio-ph · physics.chem-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{2LES2E2WEC77PKVSTUZNJ7V7XF}

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	2026-05-18T04:20:24.624787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2c92d135620bff7aab29d32d4febfb96b3b83c237e1d9a6ae14928b404f10ad

Aliases

arxiv: 1103.3042 · arxiv_version: 1103.3042v2 · doi: 10.48550/arxiv.1103.3042 · pith_short_12: 2LES2E2WEC77 · pith_short_16: 2LES2E2WEC77PKVS · pith_short_8: 2LES2E2W

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/2LES2E2WEC77PKVSTUZNJ7V7XF \
  | 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: d2c92d135620bff7aab29d32d4febfb96b3b83c237e1d9a6ae14928b404f10ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e744b4f54aebbd445d61c3873844e87564894baf02572bb6d8dabe9717d87a17",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2011-03-15T20:57:41Z",
    "title_canon_sha256": "3be9eac168a8eed234f1e2c48491a1324d4bf45ed7a2078d1df43eb15270c7ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3042",
    "kind": "arxiv",
    "version": 2
  }
}