Pith Number

pith:FOCAMZ3J

pith:2008:FOCAMZ3JGX2CSI6L7VC6U3D6PC

not attested not anchored not stored refs pending

Continuous first order logic and local stability

Alexander Usvyatsov (UCLA-CS), Ita\"i Ben Yaacov (ICJ)

arxiv:0801.4303 v1 · 2008-01-28 · 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{FOCAMZ3JGX2CSI6L7VC6U3D6PC}

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	2026-05-18T02:59:48.947991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b8406676935f42923cbfd45ea6c7e7896e82b9e3ca44f3ae03c5b1e8793190c

Aliases

arxiv: 0801.4303 · arxiv_version: 0801.4303v1 · doi: 10.48550/arxiv.0801.4303 · pith_short_12: FOCAMZ3JGX2C · pith_short_16: FOCAMZ3JGX2CSI6L · pith_short_8: FOCAMZ3J

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/FOCAMZ3JGX2CSI6L7VC6U3D6PC \
  | 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: 2b8406676935f42923cbfd45ea6c7e7896e82b9e3ca44f3ae03c5b1e8793190c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e4bd947c9c29b7e02e22779aa8d14fcebadb7e9d862d3fd058891e149722de7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "2008-01-28T15:06:07Z",
    "title_canon_sha256": "c1dce1777b25cbfdf8e79052be41a23aafc403dc1c4e90ca5d5e8f02e0353860"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.4303",
    "kind": "arxiv",
    "version": 1
  }
}