Pith Number

pith:7R62UQ4V

pith:2013:7R62UQ4VS7GRSZFNWUUI63XCVJ

not attested not anchored not stored refs pending

The Derived Category of quasi-coherent sheaves on an Artin stack via model structures

Sergio Estrada

arxiv:1303.6542 v1 · 2013-03-26 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7R62UQ4VS7GRSZFNWUUI63XCVJ}

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	2026-05-18T03:29:49.106902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc7daa439597cd1964adb5288f6ee2aa6e65302f7de0ad87946be6100bc270ec

Aliases

arxiv: 1303.6542 · arxiv_version: 1303.6542v1 · doi: 10.48550/arxiv.1303.6542 · pith_short_12: 7R62UQ4VS7GR · pith_short_16: 7R62UQ4VS7GRSZFN · pith_short_8: 7R62UQ4V

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/7R62UQ4VS7GRSZFNWUUI63XCVJ \
  | 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: fc7daa439597cd1964adb5288f6ee2aa6e65302f7de0ad87946be6100bc270ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c7bb75c2e4883cda44276e51ee8e349a2319c34310a37eb3813939c47798181",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-03-26T16:22:48Z",
    "title_canon_sha256": "89b3cdc3924949f940fec9486a9007ff406ee733682f694671a124e4b603def8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6542",
    "kind": "arxiv",
    "version": 1
  }
}