Pith Number

pith:UQMY4UDT

pith:2015:UQMY4UDTSZJKPOGH42T7IZEOTJ

not attested not anchored not stored refs pending

Fix Your Types

Inc.), Jared Davis (Centaur Technology, Sol Swords (Centaur Technology

arxiv:1509.06079 v1 · 2015-09-21 · cs.LO · 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{UQMY4UDTSZJKPOGH42T7IZEOTJ}

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	2026-05-18T01:32:35.931427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4198e50739652a7b8c7e6a7f4648e9a7408f849d9991e7d314694e2990e3bfc

Aliases

arxiv: 1509.06079 · arxiv_version: 1509.06079v1 · doi: 10.48550/arxiv.1509.06079 · pith_short_12: UQMY4UDTSZJK · pith_short_16: UQMY4UDTSZJKPOGH · pith_short_8: UQMY4UDT

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/UQMY4UDTSZJKPOGH42T7IZEOTJ \
  | 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: a4198e50739652a7b8c7e6a7f4648e9a7408f849d9991e7d314694e2990e3bfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e851a432a4d982cccd7b6bb9e2b40924ec106e67ace21c960cd10a983a88680d",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-09-21T00:34:37Z",
    "title_canon_sha256": "9d70b70d8e9a9f84a17ed5072e52f0a1f1528efef50c26038d472f1e1d4300b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06079",
    "kind": "arxiv",
    "version": 1
  }
}