Pith Number

pith:EPL23EQ7

pith:2016:EPL23EQ7UXQM3ZBTUFDUYBKDPR

not attested not anchored not stored refs pending

Good Frames in the Hart-Shelah Example

Sebastien Vasey, Will Boney

arxiv:1607.03885 v4 · 2016-07-13 · 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{EPL23EQ7UXQM3ZBTUFDUYBKDPR}

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	2026-05-18T00:09:53.338156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23d7ad921fa5e0cde433a1474c05437c714798cf5dacf769de0cd48b41078c72

Aliases

arxiv: 1607.03885 · arxiv_version: 1607.03885v4 · doi: 10.48550/arxiv.1607.03885 · pith_short_12: EPL23EQ7UXQM · pith_short_16: EPL23EQ7UXQM3ZBT · pith_short_8: EPL23EQ7

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/EPL23EQ7UXQM3ZBTUFDUYBKDPR \
  | 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: 23d7ad921fa5e0cde433a1474c05437c714798cf5dacf769de0cd48b41078c72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c13facb0c8fa6f59a30ef01e2f9dc749fbec908fae8628cde344216d6a8ae0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-07-13T19:55:35Z",
    "title_canon_sha256": "d668d1c7d0014f0eebfe62b51a35d0a19d6472c17dd9ce607164888faac94da5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.03885",
    "kind": "arxiv",
    "version": 4
  }
}