Pith Number

pith:D6WSGLEA

pith:2009:D6WSGLEA6ZEUM5TRVQ63R5NCWL

not attested not anchored not stored refs pending

Functions continuous on curves in o-minimal structures

Janak Ramakrishnan

arxiv:0902.4612 v2 · 2009-02-26 · 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{D6WSGLEA6ZEUM5TRVQ63R5NCWL}

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	2026-05-18T04:23:46.684486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fad232c80f649467671ac3db8f5a2b2c014a60e5ffeb58c3ed207c26cd6150f

Aliases

arxiv: 0902.4612 · arxiv_version: 0902.4612v2 · doi: 10.48550/arxiv.0902.4612 · pith_short_12: D6WSGLEA6ZEU · pith_short_16: D6WSGLEA6ZEUM5TR · pith_short_8: D6WSGLEA

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/D6WSGLEA6ZEUM5TRVQ63R5NCWL \
  | 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: 1fad232c80f649467671ac3db8f5a2b2c014a60e5ffeb58c3ed207c26cd6150f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07b91dc61c51b3eae04ddda1130cc59d4f27701b951e437ed826b1824bc88964",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2009-02-26T15:44:08Z",
    "title_canon_sha256": "908c881e54eeefd5c71797935278c687fda9ad5602afc04e6a9bc332f71bb73c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4612",
    "kind": "arxiv",
    "version": 2
  }
}