Pith Number

pith:OUBSGOJ6

pith:2009:OUBSGOJ6MJDSKE3OCZTWBJPTXE

not attested not anchored not stored refs pending

Equivariant cohomology and resolution

Pierre Albin, Richard Melrose

arxiv:0907.3211 v4 · 2009-07-20 · 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{OUBSGOJ6MJDSKE3OCZTWBJPTXE}

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	2026-05-18T03:17:57.797150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

750323393e624725136e166760a5f3b92b7520e93aca22f1b8fc82964a3e9749

Aliases

arxiv: 0907.3211 · arxiv_version: 0907.3211v4 · doi: 10.48550/arxiv.0907.3211 · pith_short_12: OUBSGOJ6MJDS · pith_short_16: OUBSGOJ6MJDSKE3O · pith_short_8: OUBSGOJ6

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/OUBSGOJ6MJDSKE3OCZTWBJPTXE \
  | 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: 750323393e624725136e166760a5f3b92b7520e93aca22f1b8fc82964a3e9749

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58566d3602bc38f64ee6c62e8b4199a9e62a5d73cbca7660c2d18accc6825a4c",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-07-20T18:48:34Z",
    "title_canon_sha256": "59b437d3c3bdf99f850d5192a2cf2364ced2d61eb8c3e37996656df1fe50e2b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3211",
    "kind": "arxiv",
    "version": 4
  }
}