Pith Number

pith:RZI5JIOO

pith:2016:RZI5JIOO3RVC3J3EM7ZOCNF3US

not attested not anchored not stored refs pending

Cotangent cohomology of quadratic monomial ideals

Amin Nematbakhsh

arxiv:1609.06274 v1 · 2016-09-20 · 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{RZI5JIOO3RVC3J3EM7ZOCNF3US}

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	2026-05-18T01:04:16.278495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e51d4a1cedc6a2da76467f2e134bba49fdcec54b62a8f7c127ca0862f79ccf0

Aliases

arxiv: 1609.06274 · arxiv_version: 1609.06274v1 · doi: 10.48550/arxiv.1609.06274 · pith_short_12: RZI5JIOO3RVC · pith_short_16: RZI5JIOO3RVC3J3E · pith_short_8: RZI5JIOO

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/RZI5JIOO3RVC3J3EM7ZOCNF3US \
  | 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: 8e51d4a1cedc6a2da76467f2e134bba49fdcec54b62a8f7c127ca0862f79ccf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab65199d4e04bbbff8ec1fbbe1713587fc1935de8f3af585e342156357012e73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2016-09-20T18:06:34Z",
    "title_canon_sha256": "0cdb31fc1dccae836ddcfbd8146345b6e095e5034901724835d4a30eb46568ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.06274",
    "kind": "arxiv",
    "version": 1
  }
}