Pith Number

pith:W5T37PPC

pith:2022:W5T37PPC5THJMM6WELZJIG3EAF

not attested not anchored not stored refs pending

On the Ramsey number of daisies I

Marcelo Sales, Pavel Pudl\'ak, Vojt\v{e}ch R\"odl

arxiv:2211.10377 v2 · 2022-11-18 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W5T37PPC5THJMM6WELZJIG3EAF}

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	2026-07-05T08:32:58.804938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b767bfbde2ecce9633d622f2941b64015e2a2e0e01ccbfc6dc99b566f0b54b58

Aliases

arxiv: 2211.10377 · arxiv_version: 2211.10377v2 · doi: 10.48550/arxiv.2211.10377 · pith_short_12: W5T37PPC5THJ · pith_short_16: W5T37PPC5THJMM6W · pith_short_8: W5T37PPC

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/W5T37PPC5THJMM6WELZJIG3EAF \
  | 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: b767bfbde2ecce9633d622f2941b64015e2a2e0e01ccbfc6dc99b566f0b54b58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2588fe7bf9cf3c848971f87397fd1217628e90ef30208ce72eb3fef0502c4ba5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2022-11-18T17:15:52Z",
    "title_canon_sha256": "3fcb06eb20ac8468c29576d5338622aba5366860ac5d061c2edd660ca0925b4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.10377",
    "kind": "arxiv",
    "version": 2
  }
}