Pith Number

pith:2S6YDZ3U

pith:2010:2S6YDZ3U5Z4WSXOARB4QY2UEJF

not attested not anchored not stored refs pending

Multiple gaps

Antonio Avil\'es, Stevo Todorcevic

arxiv:1001.4888 v2 · 2010-01-27 · math.LO · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2S6YDZ3U5Z4WSXOARB4QY2UEJF}

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	2026-05-18T02:24:39.415872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4bd81e774ee79695dc088790c6a8449770bb849c3eff3daa77e19a5a47b9411

Aliases

arxiv: 1001.4888 · arxiv_version: 1001.4888v2 · doi: 10.48550/arxiv.1001.4888 · pith_short_12: 2S6YDZ3U5Z4W · pith_short_16: 2S6YDZ3U5Z4WSXOA · pith_short_8: 2S6YDZ3U

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/2S6YDZ3U5Z4WSXOARB4QY2UEJF \
  | 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: d4bd81e774ee79695dc088790c6a8449770bb849c3eff3daa77e19a5a47b9411

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af493105e78c1cf74cc4aa9c530648e2129adaaec852c8f493242eb07e8002bd",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-01-27T10:03:48Z",
    "title_canon_sha256": "a429a48489c44ebc1d1155d0500eed9ab7ed8ab93abe3a7b8b6077d76141733d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4888",
    "kind": "arxiv",
    "version": 2
  }
}