Pith Number

pith:RTGZUGQP

pith:2017:RTGZUGQPCWLWNK22GDIDLWCAAS

not attested not anchored not stored refs pending

Ramsey properties and extending partial automorphisms for classes of finite structures

David M. Evans, Jan Hubi\v{c}ka, Jaroslav Ne\v{s}et\v{r}il

arxiv:1705.02379 v3 · 2017-05-05 · math.CO · cs.DM · math.GR · 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{RTGZUGQPCWLWNK22GDIDLWCAAS}

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	2026-07-05T02:54:38.252529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ccd9a1a0f159766ab5a30d035d84004a26d5a888ed492c8eff51ab3eb9b0bf6

Aliases

arxiv: 1705.02379 · arxiv_version: 1705.02379v3 · doi: 10.48550/arxiv.1705.02379 · pith_short_12: RTGZUGQPCWLW · pith_short_16: RTGZUGQPCWLWNK22 · pith_short_8: RTGZUGQP

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/RTGZUGQPCWLWNK22GDIDLWCAAS \
  | 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: 8ccd9a1a0f159766ab5a30d035d84004a26d5a888ed492c8eff51ab3eb9b0bf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44b038a0e59d31b3847eaa468076bcf5bbf89d5a17ba6154c657937ca997633b",
    "cross_cats_sorted": [
      "cs.DM",
      "math.GR",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-05-05T19:46:57Z",
    "title_canon_sha256": "139b52860e4cafbb586e9807f7681025be7e017a76c08e1924561784df936786"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.02379",
    "kind": "arxiv",
    "version": 3
  }
}