Pith Number

pith:PM5BEDBI

pith:2012:PM5BEDBI5M4AFQ2NOJEHHZOZUR

not attested not anchored not stored refs pending

Notions of purity and the cohomology of quiver moduli

Michel Brion, Roy Joshua

arxiv:1205.0629 v1 · 2012-05-03 · 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{PM5BEDBI5M4AFQ2NOJEHHZOZUR}

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	2026-05-18T03:56:25.363136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b3a120c28eb3802c34d724873e5d9a44d0aa0aec1ec6833a692fcad5ca71933

Aliases

arxiv: 1205.0629 · arxiv_version: 1205.0629v1 · doi: 10.48550/arxiv.1205.0629 · pith_short_12: PM5BEDBI5M4A · pith_short_16: PM5BEDBI5M4AFQ2N · pith_short_8: PM5BEDBI

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/PM5BEDBI5M4AFQ2NOJEHHZOZUR \
  | 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: 7b3a120c28eb3802c34d724873e5d9a44d0aa0aec1ec6833a692fcad5ca71933

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b03253ce6831f7dfb09f3c50f1fe502af69eccb55573b549672ef82eefac216a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-05-03T06:54:04Z",
    "title_canon_sha256": "fc874222200817025a25e6e590c06fc41a6ddf57b4441c0f65fae0ac024d417b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0629",
    "kind": "arxiv",
    "version": 1
  }
}