Pith Number

pith:FRDP3FM2

pith:2018:FRDP3FM2VKKFZ3JH7CH47Z434I

not attested not anchored not stored refs pending

Higher amalgamation properties in stable theories

David M. Evans, Jonathan Kirby, Tim Zander

arxiv:1805.03127 v1 · 2018-05-08 · 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{FRDP3FM2VKKFZ3JH7CH47Z434I}

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	2026-05-18T00:16:34.537758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c46fd959aaa945ced27f88fcfe79be2139230745f0de4301c1f64b329e676af

Aliases

arxiv: 1805.03127 · arxiv_version: 1805.03127v1 · doi: 10.48550/arxiv.1805.03127 · pith_short_12: FRDP3FM2VKKF · pith_short_16: FRDP3FM2VKKFZ3JH · pith_short_8: FRDP3FM2

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/FRDP3FM2VKKFZ3JH7CH47Z434I \
  | 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: 2c46fd959aaa945ced27f88fcfe79be2139230745f0de4301c1f64b329e676af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc3b850bc23cd201d49cf1d973c8113f4c6a87937a8572a50aa9ea52bc39e04d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-05-08T15:56:37Z",
    "title_canon_sha256": "3602bdcafb7b50cb39dae73c185108786408133aaa27c7c4b7197fc49d832105"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03127",
    "kind": "arxiv",
    "version": 1
  }
}