Pith Number

pith:MDGD4EC3

pith:2017:MDGD4EC3E3W72UWRMYPETIPRYN

not attested not anchored not stored refs pending

A Euclidean Ramsey result in the plane

Sergei Tsaturian

arxiv:1703.10723 v2 · 2017-03-31 · math.CO · math.MG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MDGD4EC3E3W72UWRMYPETIPRYN}

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	2026-05-18T00:47:19.466839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60cc3e105b26edfd52d1661e49a1f1c36338dafdf0936f81c9c954588234b927

Aliases

arxiv: 1703.10723 · arxiv_version: 1703.10723v2 · doi: 10.48550/arxiv.1703.10723 · pith_short_12: MDGD4EC3E3W7 · pith_short_16: MDGD4EC3E3W72UWR · pith_short_8: MDGD4EC3

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/MDGD4EC3E3W72UWRMYPETIPRYN \
  | 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: 60cc3e105b26edfd52d1661e49a1f1c36338dafdf0936f81c9c954588234b927

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4a371bc80c540d5d63c7cb5806368ae8cf2aac0e590c6ef5db467821d164aa2",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-03-31T01:03:16Z",
    "title_canon_sha256": "75dfe4a4b073836cefc948465fb13faeedd0904aaf18b97b0f0c8cffea138a3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.10723",
    "kind": "arxiv",
    "version": 2
  }
}