Pith Number

pith:GTH7OACM

pith:2012:GTH7OACMFID2UFVUJEFN44KUAY

not attested not anchored not stored refs pending

Fra\"iss\'e limits of metric structures

Ita\"i Ben Yaacov (ICJ)

arxiv:1203.4459 v4 · 2012-03-20 · 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{GTH7OACMFID2UFVUJEFN44KUAY}

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	2026-05-18T02:43:24.650165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34cff7004c2a07aa16b4490ade7154062a219cde6a5100ba8467958be475d922

Aliases

arxiv: 1203.4459 · arxiv_version: 1203.4459v4 · doi: 10.48550/arxiv.1203.4459 · pith_short_12: GTH7OACMFID2 · pith_short_16: GTH7OACMFID2UFVU · pith_short_8: GTH7OACM

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/GTH7OACMFID2UFVUJEFN44KUAY \
  | 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: 34cff7004c2a07aa16b4490ade7154062a219cde6a5100ba8467958be475d922

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1d12564af2f93646ae6ded25545ab98b6ba2940eb9d301384334ee257d13477",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-03-20T15:05:49Z",
    "title_canon_sha256": "6432ddbb725c2b8731564edb3adf8d3c2fd6df302f8cc47f64eb4dd10667f7f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4459",
    "kind": "arxiv",
    "version": 4
  }
}