Pith Number

pith:XREPIKVX

pith:2015:XREPIKVX5INYT7EACWJQ5WROBC

not attested not anchored not stored refs pending

Occurrence Typing Modulo Theories

Andrew M. Kent, David Kempe, Sam Tobin-Hochstadt

arxiv:1511.07033 v2 · 2015-11-22 · 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{XREPIKVX5INYT7EACWJQ5WROBC}

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	2026-05-18T01:03:20.109389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc48f42ab7ea1b89fc8015930eda2e08974eee6ec4c6e46fb633d2ed6073cf73

Aliases

arxiv: 1511.07033 · arxiv_version: 1511.07033v2 · doi: 10.48550/arxiv.1511.07033 · pith_short_12: XREPIKVX5INY · pith_short_16: XREPIKVX5INYT7EA · pith_short_8: XREPIKVX

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/XREPIKVX5INYT7EACWJQ5WROBC \
  | 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: bc48f42ab7ea1b89fc8015930eda2e08974eee6ec4c6e46fb633d2ed6073cf73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e745c04d166abba2f0e953d145adde0b7a2925ac55efa33bc21ea438d5878f70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-11-22T16:54:32Z",
    "title_canon_sha256": "15090aca8c29f7defe8d47c4ac5ee921d58cee89298b8fd03fcb74894243c9d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07033",
    "kind": "arxiv",
    "version": 2
  }
}