Pith Number

pith:TXJBR4HT

pith:2014:TXJBR4HTAFGTSAYLD2X4X23IPU

not attested not anchored not stored refs pending

Computable Axiomatizability of Elementary Classes

Peter Sinclair

arxiv:1409.1608 v2 · 2014-09-04 · 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{TXJBR4HTAFGTSAYLD2X4X23IPU}

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	2026-05-17T23:53:12.229737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dd218f0f3014d39030b1eafcbeb687d3aef6a54d7d5a324c462d7c9f91f7079

Aliases

arxiv: 1409.1608 · arxiv_version: 1409.1608v2 · doi: 10.48550/arxiv.1409.1608 · pith_short_12: TXJBR4HTAFGT · pith_short_16: TXJBR4HTAFGTSAYL · pith_short_8: TXJBR4HT

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/TXJBR4HTAFGTSAYLD2X4X23IPU \
  | 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: 9dd218f0f3014d39030b1eafcbeb687d3aef6a54d7d5a324c462d7c9f91f7079

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "435f04d5b828fa2a37e77545db82663ac3391168777781cd7198227f9feb06df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-09-04T20:57:06Z",
    "title_canon_sha256": "fee6bdf507d0051609461f7327456ba4372fd09fdc6739d9979849fce3ff1c50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1608",
    "kind": "arxiv",
    "version": 2
  }
}