Pith Number

pith:7MGJV2TQ

pith:2013:7MGJV2TQRSEXJAMICS7WKJAJ7D

not attested not anchored not stored refs pending

On cohomological dimension and depth under linkage

M. Eghbali, N. Shirmohammadi

arxiv:1307.5513 v1 · 2013-07-21 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7MGJV2TQRSEXJAMICS7WKJAJ7D}

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	2026-05-18T03:17:55.440313Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb0c9aea708c8974818814bf652409f8d8d001d72ee6f723a2d622a31658dd4e

Aliases

arxiv: 1307.5513 · arxiv_version: 1307.5513v1 · doi: 10.48550/arxiv.1307.5513 · pith_short_12: 7MGJV2TQRSEX · pith_short_16: 7MGJV2TQRSEXJAMI · pith_short_8: 7MGJV2TQ

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/7MGJV2TQRSEXJAMICS7WKJAJ7D \
  | 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: fb0c9aea708c8974818814bf652409f8d8d001d72ee6f723a2d622a31658dd4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbb6b502e5f5a2541dfe27d8630e4ce258dd6df36392934d0ca5610f419aeda7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-07-21T10:14:00Z",
    "title_canon_sha256": "b328a3d030d626c73252b27a4913e62f177a702ac74702dfcd2480597dbce3fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5513",
    "kind": "arxiv",
    "version": 1
  }
}