Pith Number

pith:ED3LFWYA

pith:2016:ED3LFWYAOD45H6P5PJILHSBPDI

not attested not anchored not stored refs pending

Semi-orthogonal decompositions of GIT quotient stacks

Michel Van den Bergh, \v{S}pela \v{S}penko

arxiv:1603.02858 v2 · 2016-03-09 · 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{ED3LFWYAOD45H6P5PJILHSBPDI}

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	2026-05-18T00:25:39.883614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20f6b2db0070f9d3f9fd7a50b3c82f1a0016f04fdf2bcc5fe005358301926a0a

Aliases

arxiv: 1603.02858 · arxiv_version: 1603.02858v2 · doi: 10.48550/arxiv.1603.02858 · pith_short_12: ED3LFWYAOD45 · pith_short_16: ED3LFWYAOD45H6P5 · pith_short_8: ED3LFWYA

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/ED3LFWYAOD45H6P5PJILHSBPDI \
  | 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: 20f6b2db0070f9d3f9fd7a50b3c82f1a0016f04fdf2bcc5fe005358301926a0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c29762aac7c0d17c4c912b5b15b0543394c252f46aea1da00c17b893f7c3e907",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-03-09T11:53:51Z",
    "title_canon_sha256": "c1e42971c1b852a45cefd7914437a83c83999cdab80d98efaa0bb8bc7067ddab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.02858",
    "kind": "arxiv",
    "version": 2
  }
}