Pith Number

pith:PCJ5KCYZ

pith:2017:PCJ5KCYZVWSBXK66RG6S3SDAAF

not attested not anchored not stored refs pending

Toward Semantic Foundations for Program Editors

Claire Le Goues, Cyrus Omar, Ian Voysey, Jonathan Aldrich, Joshua Sunshine, Matthew A. Hammer, Michael Hilton

arxiv:1703.08694 v1 · 2017-03-25 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PCJ5KCYZVWSBXK66RG6S3SDAAF}

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	2026-05-18T00:47:55.854223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7893d50b19ada41babde89bd2dc8600145118ed45aed478eb41c82acfe110c23

Aliases

arxiv: 1703.08694 · arxiv_version: 1703.08694v1 · doi: 10.48550/arxiv.1703.08694 · pith_short_12: PCJ5KCYZVWSB · pith_short_16: PCJ5KCYZVWSBXK66 · pith_short_8: PCJ5KCYZ

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/PCJ5KCYZVWSBXK66RG6S3SDAAF \
  | 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: 7893d50b19ada41babde89bd2dc8600145118ed45aed478eb41c82acfe110c23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d39c89adb6e5aa8f6711c32b6e7b812cbe70f0afdb3b8e3713a5cab431753c5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2017-03-25T13:39:51Z",
    "title_canon_sha256": "d570e7042857247534f0e158cae2c84d81bc33bc2f17902ae83a2382d9b17713"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08694",
    "kind": "arxiv",
    "version": 1
  }
}