Pith Number

pith:DLEFK57Q

pith:2016:DLEFK57QGNII65LXOHMPAIW7YQ

not attested not anchored not stored refs pending

Adjacent Ramsey theory and Higman's lemma

Florian Pelupessy

arxiv:1602.07769 v2 · 2016-02-25 · 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{DLEFK57QGNII65LXOHMPAIW7YQ}

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	2026-05-18T01:19:52.839666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ac85577f033508f757771d8f022dfc40a5e715d30e59b4f57565c6dea9ed07d

Aliases

arxiv: 1602.07769 · arxiv_version: 1602.07769v2 · doi: 10.48550/arxiv.1602.07769 · pith_short_12: DLEFK57QGNII · pith_short_16: DLEFK57QGNII65LX · pith_short_8: DLEFK57Q

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/DLEFK57QGNII65LXOHMPAIW7YQ \
  | 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: 1ac85577f033508f757771d8f022dfc40a5e715d30e59b4f57565c6dea9ed07d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "263b63a5adbf282e34168ab2e50efb46079f02a54ddaa5d22e35b6423fcbb100",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-02-25T02:09:02Z",
    "title_canon_sha256": "926b5987a1fb269005aa9cea136adf429f43bbb9c4696670b2fe356caa1120ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07769",
    "kind": "arxiv",
    "version": 2
  }
}