Pith Number

pith:MN4JBSRV

pith:2010:MN4JBSRVXQXA4KQUHIEN2YOXU5

not attested not anchored not stored refs pending

Steenrod's reduced power operations in simplicial Bredon-Illman cohomology with local coefficients

Debasis Sen, Goutam Mukherjee

arxiv:1009.4893 v1 · 2010-09-24 · 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{MN4JBSRVXQXA4KQUHIEN2YOXU5}

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	2026-05-18T04:40:21.003080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

637890ca35bc2e0e2a143a08dd61d7a777374e094f5f4b028cfd8982a927ebab

Aliases

arxiv: 1009.4893 · arxiv_version: 1009.4893v1 · doi: 10.48550/arxiv.1009.4893 · pith_short_12: MN4JBSRVXQXA · pith_short_16: MN4JBSRVXQXA4KQU · pith_short_8: MN4JBSRV

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/MN4JBSRVXQXA4KQUHIEN2YOXU5 \
  | 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: 637890ca35bc2e0e2a143a08dd61d7a777374e094f5f4b028cfd8982a927ebab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d984a9dbde88d7422ace45d54f93e582ae060e621418dedff968ad11ff5f52e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2010-09-24T16:53:01Z",
    "title_canon_sha256": "caba6cf8170c724a2161d4ce23afab5bacb2e8bc0e08c588540e5fc9f2e1c4ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4893",
    "kind": "arxiv",
    "version": 1
  }
}