Pith Number

pith:EA4T3EDK

pith:2018:EA4T3EDKMECVIWSWWBUHTSAGFS

not attested not anchored not stored refs pending

D-modules in birational geometry

Mihnea Popa

arxiv:1807.02375 v2 · 2018-07-06 · 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{EA4T3EDKMECVIWSWWBUHTSAGFS}

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	2026-05-18T00:03:36.733148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20393d906a6105545a56b06879c8062cbf5131c69994edcba6c7acbd1c088d12

Aliases

arxiv: 1807.02375 · arxiv_version: 1807.02375v2 · doi: 10.48550/arxiv.1807.02375 · pith_short_12: EA4T3EDKMECV · pith_short_16: EA4T3EDKMECVIWSW · pith_short_8: EA4T3EDK

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/EA4T3EDKMECVIWSWWBUHTSAGFS \
  | 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: 20393d906a6105545a56b06879c8062cbf5131c69994edcba6c7acbd1c088d12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e28fbe49cbb15b832b4f5f14e9dd2f821da449f88deb42989ac99162598df22",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-07-06T12:23:17Z",
    "title_canon_sha256": "b008676b522ac16fcd34f1bb2a766cdc37bc9f18ba30a833aefa3147f1f05c89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02375",
    "kind": "arxiv",
    "version": 2
  }
}