Pith Number

pith:EBVUKKBF

pith:2015:EBVUKKBFV56FYQHU6G25PF47WV

not attested not anchored not stored refs pending

Minimal elementary end extensions

James H. Schmerl

arxiv:1512.06478 v3 · 2015-12-21 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EBVUKKBFV56FYQHU6G25PF47WV}

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	2026-05-18T01:04:57.684508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

206b452825af7c5c40f4f1b5d7979fb569812d1a8e03491a1b74226f1e8cb279

Aliases

arxiv: 1512.06478 · arxiv_version: 1512.06478v3 · doi: 10.48550/arxiv.1512.06478 · pith_short_12: EBVUKKBFV56F · pith_short_16: EBVUKKBFV56FYQHU · pith_short_8: EBVUKKBF

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/EBVUKKBFV56FYQHU6G25PF47WV \
  | 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: 206b452825af7c5c40f4f1b5d7979fb569812d1a8e03491a1b74226f1e8cb279

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0847e5e205b8b4fe7ccfbd050b07dcfabc368336e18c58ac8ab4851417cbcdee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-12-21T03:05:41Z",
    "title_canon_sha256": "f618d33eb65f1024b2f954e8642e7a40337eb37c51360c923d091b4a30eae755"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06478",
    "kind": "arxiv",
    "version": 3
  }
}