Pith Number

pith:PP3SCMY5

pith:2021:PP3SCMY5O5PCEWACEM4HAECRQM

not attested not anchored not stored refs pending

Mixed Hodge structure on local cohomology with support in determinantal varieties

Michael Perlman

arxiv:2102.04369 v2 · 2021-02-08 · math.AG · 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{PP3SCMY5O5PCEWACEM4HAECRQM}

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	2026-07-05T05:34:29.325102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bf721331d775e22580223387010518338464fff3bef345db6c4222215aa0eb7

Aliases

arxiv: 2102.04369 · arxiv_version: 2102.04369v2 · doi: 10.48550/arxiv.2102.04369 · pith_short_12: PP3SCMY5O5PC · pith_short_16: PP3SCMY5O5PCEWAC · pith_short_8: PP3SCMY5

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/PP3SCMY5O5PCEWACEM4HAECRQM \
  | 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: 7bf721331d775e22580223387010518338464fff3bef345db6c4222215aa0eb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42ae86286d763366ae97f159e61cdf7c418f9f6a829929ece10d8800a76134cc",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2021-02-08T17:22:05Z",
    "title_canon_sha256": "fa37ec3c296d43cc88e34a95f197b03d454bed0c4b495237e3b1c9371f5949f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.04369",
    "kind": "arxiv",
    "version": 2
  }
}