Pith Number

pith:JGFQFNRD

pith:2023:JGFQFNRDEDIQYV6VVEW3PT24SV

not attested not anchored not stored refs pending

Perverse coherent extensions on Calabi-Yau threefolds and representations of cohomological Hall algebras

Dylan Butson, Miroslav Rapcak

arxiv:2309.16582 v1 · 2023-09-28 · math.RT · hep-th · math-ph · math.AG · math.MP · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JGFQFNRDEDIQYV6VVEW3PT24SV}

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	2026-07-05T06:55:18.532936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

498b02b62320d10c57d5a92db7cf5c9571baa71f6a11f36bfc84df8be666ca26

Aliases

arxiv: 2309.16582 · arxiv_version: 2309.16582v1 · doi: 10.48550/arxiv.2309.16582 · pith_short_12: JGFQFNRDEDIQ · pith_short_16: JGFQFNRDEDIQYV6V · pith_short_8: JGFQFNRD

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/JGFQFNRDEDIQYV6VVEW3PT24SV \
  | 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: 498b02b62320d10c57d5a92db7cf5c9571baa71f6a11f36bfc84df8be666ca26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b1325a2c0f38bd9cbdcd8d881354ca7dbafcafbce1bf6faf91e48ff1f61fe47",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.AG",
      "math.MP",
      "math.QA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2023-09-28T16:39:18Z",
    "title_canon_sha256": "4ca138d6e35130686d0804ce9974524d7bf9a867bd0269073265a52169945da7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.16582",
    "kind": "arxiv",
    "version": 1
  }
}