Pith Number

pith:R3FCYWST

pith:2003:R3FCYWST66MBDHWWMXSXANWUVT

not attested not anchored not stored refs pending

Stratified fibrations and the intersection homology of the regular neighborhoods of bottom strata

Greg Friedman

arxiv:math/0307254 v1 · 2003-07-17 · math.GT · 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{R3FCYWST66MBDHWWMXSXANWUVT}

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	2026-05-18T04:25:26.489552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8eca2c5a53f798119ed665e57036d4acd0947dbf4b8b463197fdf7b15b611752

Aliases

arxiv: math/0307254 · arxiv_version: math/0307254v1 · doi: 10.48550/arxiv.math/0307254 · pith_short_12: R3FCYWST66MB · pith_short_16: R3FCYWST66MBDHWW · pith_short_8: R3FCYWST

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/R3FCYWST66MBDHWWMXSXANWUVT \
  | 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: 8eca2c5a53f798119ed665e57036d4acd0947dbf4b8b463197fdf7b15b611752

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "088a6e56fea4d53692a0d97ceaca11cf5a4d0b05defe90e08d2500d52f512fcd",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2003-07-17T22:16:23Z",
    "title_canon_sha256": "82e4ae0d3ff080200dad16af86c98bf5ea477b5b43b9e7271f72e2d7c4a17565"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0307254",
    "kind": "arxiv",
    "version": 1
  }
}