Pith Number

pith:YRE7KTYN

pith:2005:YRE7KTYN7V74HEPFLTNO6BR6W4

not attested not anchored not stored refs pending

New reals: Can live with them, can live without them

Jakob Kellner, Martin Goldstern

arxiv:math/0505471 v3 · 2005-05-23 · 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{YRE7KTYN7V74HEPFLTNO6BR6W4}

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	2026-05-18T01:33:57.421763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c449f54f0dfd7fc391e55cdaef063eb7000e4213d0c3d9cbc945d01fa366ad0a

Aliases

arxiv: math/0505471 · arxiv_version: math/0505471v3 · doi: 10.48550/arxiv.math/0505471 · pith_short_12: YRE7KTYN7V74 · pith_short_16: YRE7KTYN7V74HEPF · pith_short_8: YRE7KTYN

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/YRE7KTYN7V74HEPFLTNO6BR6W4 \
  | 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: c449f54f0dfd7fc391e55cdaef063eb7000e4213d0c3d9cbc945d01fa366ad0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bb8fd4283b6a3e3a7e3ef7d4545c712131e7fbf2003438d10261dcff3bdaa0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2005-05-23T13:58:44Z",
    "title_canon_sha256": "e2ac8694fc305e336d0c9f930873d82dfc4a14896df062f31c0ca8cde2dba8ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0505471",
    "kind": "arxiv",
    "version": 3
  }
}