Pith Number

pith:DQRD7FBS

pith:2015:DQRD7FBSMYII3QNZXIWHSMSIJA

not attested not anchored not stored refs pending

Comparison results for derived Deligne-Mumford stacks

Mauro Porta

arxiv:1507.00573 v1 · 2015-07-02 · 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{DQRD7FBSMYII3QNZXIWHSMSIJA}

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	2026-05-18T00:49:52.645094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c223f943266108dc1b9ba2c793248480c1daa9434b305e16a3f851fb433c3b1

Aliases

arxiv: 1507.00573 · arxiv_version: 1507.00573v1 · doi: 10.48550/arxiv.1507.00573 · pith_short_12: DQRD7FBSMYII · pith_short_16: DQRD7FBSMYII3QNZ · pith_short_8: DQRD7FBS

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/DQRD7FBSMYII3QNZXIWHSMSIJA \
  | 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: 1c223f943266108dc1b9ba2c793248480c1daa9434b305e16a3f851fb433c3b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efeaa8856f44255efa1e972528947cbf8cd1465b051c902b6dbd6042538b7871",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-07-02T13:36:23Z",
    "title_canon_sha256": "663314d2469cfd06050d6bea772516f2631de4f3494c68318895271437fb08a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00573",
    "kind": "arxiv",
    "version": 1
  }
}