Pith Number

pith:RA5GU5L4

pith:2012:RA5GU5L4HACU43SQC42ZHC4OFT

not attested not anchored not stored refs pending

Relative group cohomology and the orbit category

Ergun Yalcin, Semra Pamuk

arxiv:1205.1120 v1 · 2012-05-05 · math.AT · math.RT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RA5GU5L4HACU43SQC42ZHC4OFT}

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	2026-05-18T03:56:12.056629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

883a6a757c38054e6e501735938b8e2cf8176a91215e79d189ef2a9432ee2de4

Aliases

arxiv: 1205.1120 · arxiv_version: 1205.1120v1 · doi: 10.48550/arxiv.1205.1120 · pith_short_12: RA5GU5L4HACU · pith_short_16: RA5GU5L4HACU43SQ · pith_short_8: RA5GU5L4

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/RA5GU5L4HACU43SQC42ZHC4OFT \
  | 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: 883a6a757c38054e6e501735938b8e2cf8176a91215e79d189ef2a9432ee2de4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cd8c9298646483d6a6b1ab9adf48f071b3ef15cb1815ceb85d67599949b86d8",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2012-05-05T11:26:25Z",
    "title_canon_sha256": "fb3fd4df851a91c0d94772751eb6c5c9dd8b879c3af27eb793d2334e01a2fb46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1120",
    "kind": "arxiv",
    "version": 1
  }
}