Pith Number

pith:D2DFBXUL

pith:2015:D2DFBXUL32QQ5XLPQ5ILNAF3NL

not attested not anchored not stored refs pending

On the Uniform Computational Content of Ramsey's Theorem

Tahina Rakotoniaina, Vasco Brattka

arxiv:1508.00471 v5 · 2015-08-03 · 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{D2DFBXUL32QQ5XLPQ5ILNAF3NL}

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	2026-05-18T00:01:15.610458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e8650de8bdea10edd6f8750b680bb6af7e312b7d7c35bcd230064dd55de0a22

Aliases

arxiv: 1508.00471 · arxiv_version: 1508.00471v5 · doi: 10.48550/arxiv.1508.00471 · pith_short_12: D2DFBXUL32QQ · pith_short_16: D2DFBXUL32QQ5XLP · pith_short_8: D2DFBXUL

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/D2DFBXUL32QQ5XLPQ5ILNAF3NL \
  | 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: 1e8650de8bdea10edd6f8750b680bb6af7e312b7d7c35bcd230064dd55de0a22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60e6be13d3825fa99e3055ec677a8da326c7ceadf8e1c9df3d957287814d8ff1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-08-03T16:16:14Z",
    "title_canon_sha256": "3226e66c91b034f0893889a472ff0f6d283cb56e10f2f47a36cc8210df8dc7ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00471",
    "kind": "arxiv",
    "version": 5
  }
}