Pith Number

pith:7FD2TO4T

pith:2014:7FD2TO4TFHMC52YSR2WBSKNI6F

not attested not anchored not stored refs pending

Semi-derived and derived Hall algebras for stable categories

Mikhail Gorsky

arxiv:1409.6798 v1 · 2014-09-24 · math.QA · math.CT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FD2TO4TFHMC52YSR2WBSKNI6F}

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	2026-05-18T02:42:00.398430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f947a9bb9329d82eeb128eac1929a8f1689bdd0bc4d73cda6a647f4a7d9450c8

Aliases

arxiv: 1409.6798 · arxiv_version: 1409.6798v1 · doi: 10.48550/arxiv.1409.6798 · pith_short_12: 7FD2TO4TFHMC · pith_short_16: 7FD2TO4TFHMC52YS · pith_short_8: 7FD2TO4T

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/7FD2TO4TFHMC52YSR2WBSKNI6F \
  | 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: f947a9bb9329d82eeb128eac1929a8f1689bdd0bc4d73cda6a647f4a7d9450c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fabee57ba36f315ca5e9378584f65a806d173e4f5ee515138810e6d6372784ed",
    "cross_cats_sorted": [
      "math.CT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2014-09-24T02:38:25Z",
    "title_canon_sha256": "900c8e70a5e1f2b39ab1da3394801bae6660cbfdfd31ca05b54115da0487346a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.6798",
    "kind": "arxiv",
    "version": 1
  }
}