Pith Number

pith:7HAW2YJY

pith:2011:7HAW2YJY3XFBB5L4WDSOF2ZV36

not attested not anchored not stored refs pending

Homological stability for unordered configuration spaces

Oscar Randal-Williams

arxiv:1105.5257 v1 · 2011-05-26 · 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{7HAW2YJY3XFBB5L4WDSOF2ZV36}

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	2026-05-18T03:28:19.833258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9c16d6138ddca10f57cb0e4e2eb35dfb03e5ec9a8ba6ad849ed0316b33c0acd

Aliases

arxiv: 1105.5257 · arxiv_version: 1105.5257v1 · doi: 10.48550/arxiv.1105.5257 · pith_short_12: 7HAW2YJY3XFB · pith_short_16: 7HAW2YJY3XFBB5L4 · pith_short_8: 7HAW2YJY

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/7HAW2YJY3XFBB5L4WDSOF2ZV36 \
  | 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: f9c16d6138ddca10f57cb0e4e2eb35dfb03e5ec9a8ba6ad849ed0316b33c0acd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f68941d6ebea651202c84e5d09d5eb279b1874ac4fdddb4f44bd0821edb9cb3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2011-05-26T10:56:26Z",
    "title_canon_sha256": "4f7acf18c032170e1fe1066e8c62f2e3be50050865b3252b5933c49223074c7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5257",
    "kind": "arxiv",
    "version": 1
  }
}