Pith Number

pith:WD2BGWGD

pith:2021:WD2BGWGD4KVR2TPNKQFHBOD6IS

not attested not anchored not stored refs pending

A note on stability and NIP in one variable

Pierre Simon

arxiv:2103.15799 v1 · 2021-03-29 · 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{WD2BGWGD4KVR2TPNKQFHBOD6IS}

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.

Cited by

1 paper in Pith

Characterizations of monadic NIP

Receipt and verification

First computed	2026-07-05T02:27:09.872210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0f41358c3e2ab1d4ded540a70b87e44b2728f02b30d7e8b7ea52c23b7953058

Aliases

arxiv: 2103.15799 · arxiv_version: 2103.15799v1 · doi: 10.48550/arxiv.2103.15799 · pith_short_12: WD2BGWGD4KVR · pith_short_16: WD2BGWGD4KVR2TPN · pith_short_8: WD2BGWGD

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/WD2BGWGD4KVR2TPNKQFHBOD6IS \
  | 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: b0f41358c3e2ab1d4ded540a70b87e44b2728f02b30d7e8b7ea52c23b7953058

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58db96aa90ceb686e940fcd84a1451bc96c44d8cbc863bc645e4d1f72c4dbebf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2021-03-29T17:51:18Z",
    "title_canon_sha256": "99889f989cddd61d5b8ddc6f331c2fbbe5da38108e3e3f0e596a7886396aef01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.15799",
    "kind": "arxiv",
    "version": 1
  }
}