Pith Number

pith:NSO2TYCD

pith:2024:NSO2TYCDTPEQYOSSW5Z3XSMVFN

not attested not anchored not stored refs pending

Hall algebras via 2-Segal spaces

Benjamin Cooper, Matthew B. Young

arxiv:2409.19384 v1 · 2024-09-28 · math.CT · math.AT · 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{NSO2TYCDTPEQYOSSW5Z3XSMVFN}

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.

Cited by

1 paper in Pith

The decomposition space perspective

Receipt and verification

First computed	2026-07-05T09:13:14.573037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c9da9e0439bc90c3a52b773bbc9952b5b3c55c75b00026eafe6eb603d4d55b3

Aliases

arxiv: 2409.19384 · arxiv_version: 2409.19384v1 · doi: 10.48550/arxiv.2409.19384 · pith_short_12: NSO2TYCDTPEQ · pith_short_16: NSO2TYCDTPEQYOSS · pith_short_8: NSO2TYCD

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/NSO2TYCDTPEQYOSSW5Z3XSMVFN \
  | 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: 6c9da9e0439bc90c3a52b773bbc9952b5b3c55c75b00026eafe6eb603d4d55b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96ba428b2868671b1a43306c6fb3d17c75c1ff41bda6206d15fdcc01be97eb9f",
    "cross_cats_sorted": [
      "math.AT",
      "math.RT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2024-09-28T15:17:38Z",
    "title_canon_sha256": "75d636acba0fe50e956eca8a170c57614035187bca9b702b8dc181f724a71f61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.19384",
    "kind": "arxiv",
    "version": 1
  }
}