Pith Number

pith:YIRWZJF5

pith:2007:YIRWZJF5JTKSBH3YJQXD7R3ZPX

not attested not anchored not stored refs pending

Fibered Correspondence

Aleks Kleyn

arxiv:0707.2246 v2 · 2007-07-16 · math.DG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YIRWZJF5JTKSBH3YJQXD7R3ZPX}

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	2026-05-18T01:05:14.118933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2236ca4bd4cd5209f784c2e3fc7797dd82cb7ddd7cec846c5a47b1ab6dc18bc

Aliases

arxiv: 0707.2246 · arxiv_version: 0707.2246v2 · doi: 10.48550/arxiv.0707.2246 · pith_short_12: YIRWZJF5JTKS · pith_short_16: YIRWZJF5JTKSBH3Y · pith_short_8: YIRWZJF5

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/YIRWZJF5JTKSBH3YJQXD7R3ZPX \
  | 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: c2236ca4bd4cd5209f784c2e3fc7797dd82cb7ddd7cec846c5a47b1ab6dc18bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2296af29426589e727319ef2db1971465d56a1a709ea74874e4e52bfa594f9c8",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2007-07-16T02:33:26Z",
    "title_canon_sha256": "2d8989ed762303f5aad553b4ff14d1e7355b5b21f97f0ec62bcbe759a402ae66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.2246",
    "kind": "arxiv",
    "version": 2
  }
}