Pith Number

pith:SFTB24XA

pith:2017:SFTB24XAP6TUBLYDD6ITH4JYIZ

not attested not anchored not stored refs pending

The strength of Ramsey's theorem for pairs and arbitrarily many colors

Keita Yokoyama, Theodore A. Slaman

arxiv:1711.08704 v2 · 2017-11-23 · 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{SFTB24XAP6TUBLYDD6ITH4JYIZ}

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	2026-05-18T00:11:28.164192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91661d72e07fa740af031f9133f13846725f34e158067e7a1685f68e78960a26

Aliases

arxiv: 1711.08704 · arxiv_version: 1711.08704v2 · doi: 10.48550/arxiv.1711.08704 · pith_short_12: SFTB24XAP6TU · pith_short_16: SFTB24XAP6TUBLYD · pith_short_8: SFTB24XA

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/SFTB24XAP6TUBLYDD6ITH4JYIZ \
  | 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: 91661d72e07fa740af031f9133f13846725f34e158067e7a1685f68e78960a26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc923bb6e2048748f68521791643db7e4b94276b193df0f8e81a551805af5e84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-11-23T14:23:22Z",
    "title_canon_sha256": "1d3899963a4004436b357782d226c85fd4991b7972d297f919b9a28b08a95af0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08704",
    "kind": "arxiv",
    "version": 2
  }
}