Pith Number

pith:4T6MGBUX

pith:2013:4T6MGBUXFPUPZS5Q2RB7PXA6BC

not attested not anchored not stored refs pending

Software for Science: Some Personal Reflections

Anne C. Elster

arxiv:1309.2357 v1 · 2013-09-10 · cs.CY · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4T6MGBUXFPUPZS5Q2RB7PXA6BC}

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	2026-05-18T03:13:44.978504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4fcc306972be8fccbb0d443f7dc1e08b660c839d6ce6c687e4cba5416efe6ba

Aliases

arxiv: 1309.2357 · arxiv_version: 1309.2357v1 · doi: 10.48550/arxiv.1309.2357 · pith_short_12: 4T6MGBUXFPUP · pith_short_16: 4T6MGBUXFPUPZS5Q · pith_short_8: 4T6MGBUX

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/4T6MGBUXFPUPZS5Q2RB7PXA6BC \
  | 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: e4fcc306972be8fccbb0d443f7dc1e08b660c839d6ce6c687e4cba5416efe6ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abd8a793fa6c91ab1e0e9dc6778b91ed542c4ea8dfcf708f4ca9656fd6e52cce",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2013-09-10T01:33:59Z",
    "title_canon_sha256": "323f950d053f22d1d0c630e498a6c17dec78ca47eff46a7e35ac53927b46785c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2357",
    "kind": "arxiv",
    "version": 1
  }
}