Pith Number

pith:NXGKNV32

pith:2012:NXGKNV325UXGNJL5LNKYCK6LUM

not attested not anchored not stored refs pending

Representing Bredon cohomology with local coefficients

Debasis Sen, Samik Basu

arxiv:1206.2781 v3 · 2012-06-13 · 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{NXGKNV325UXGNJL5LNKYCK6LUM}

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	2026-05-18T02:30:08.825899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dcca6d77aed2e66a57d5b55812bcba3284764066f0977c9f7a8e9936d350066

Aliases

arxiv: 1206.2781 · arxiv_version: 1206.2781v3 · doi: 10.48550/arxiv.1206.2781 · pith_short_12: NXGKNV325UXG · pith_short_16: NXGKNV325UXGNJL5 · pith_short_8: NXGKNV32

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/NXGKNV325UXGNJL5LNKYCK6LUM \
  | 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: 6dcca6d77aed2e66a57d5b55812bcba3284764066f0977c9f7a8e9936d350066

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1afe24f1ca528bff1a33438efa707f9d82b6593857adba88d91c5d602e70a91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2012-06-13T12:27:17Z",
    "title_canon_sha256": "54f1edb00285d90364a63248f3b361930c95ded95a4edbf82a0935c1fb84ded2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2781",
    "kind": "arxiv",
    "version": 3
  }
}