Pith Number

pith:MOBCPHA4

pith:2018:MOBCPHA4TPFLOX7342XQAHVSNG

not attested not anchored not stored refs pending

Representation of relative sheaf cohomology

Tatsuo Suwa

arxiv:1810.06198 v1 · 2018-10-15 · math.AT · math.AG · math.CV · math.DG · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MOBCPHA4TPFLOX7342XQAHVSNG}

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	2026-05-18T00:03:21.160659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6382279c1c9bcab75ffbe6af001eb269acc365c116e63b3bd7d153bf715b057d

Aliases

arxiv: 1810.06198 · arxiv_version: 1810.06198v1 · doi: 10.48550/arxiv.1810.06198 · pith_short_12: MOBCPHA4TPFL · pith_short_16: MOBCPHA4TPFLOX73 · pith_short_8: MOBCPHA4

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/MOBCPHA4TPFLOX7342XQAHVSNG \
  | 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: 6382279c1c9bcab75ffbe6af001eb269acc365c116e63b3bd7d153bf715b057d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10c1658dccdee17f31139f694f3cf64eac91a57e5696d5383bc4a395cecc18bb",
    "cross_cats_sorted": [
      "math.AG",
      "math.CV",
      "math.DG",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-10-15T06:47:53Z",
    "title_canon_sha256": "e364d8617a2716ac1637942e2752fda82d9ee965b67cbc38c3c69837c25bb32d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.06198",
    "kind": "arxiv",
    "version": 1
  }
}