Pith Number

pith:QEVBQWK3

pith:2015:QEVBQWK3GKLIWYN4ME67KS62J7

not attested not anchored not stored refs pending

Cohomology of finite graded group varieties

Alberto Chiecchio, Camil I. Aponte Rom\'an

arxiv:1502.07951 v1 · 2015-02-27 · math.AG · math.AC · 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{QEVBQWK3GKLIWYN4ME67KS62J7}

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	2026-05-18T02:26:01.748365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

812a18595b32968b61bc613df54bda4fd87fcb19828ef08fe2fc6484522af9e4

Aliases

arxiv: 1502.07951 · arxiv_version: 1502.07951v1 · doi: 10.48550/arxiv.1502.07951 · pith_short_12: QEVBQWK3GKLI · pith_short_16: QEVBQWK3GKLIWYN4 · pith_short_8: QEVBQWK3

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/QEVBQWK3GKLIWYN4ME67KS62J7 \
  | 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: 812a18595b32968b61bc613df54bda4fd87fcb19828ef08fe2fc6484522af9e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cd6c77c61b17f75e59b65cc78c787c7551539d5d1910862d23c273c3447a458",
    "cross_cats_sorted": [
      "math.AC",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-02-27T16:18:26Z",
    "title_canon_sha256": "1803e35e77dec7bb9c5e006b5a481ee7dddab35f5d578f0c783e6b5ee33bf749"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07951",
    "kind": "arxiv",
    "version": 1
  }
}