Pith Number

pith:WUS2VGOE

pith:2018:WUS2VGOEIAUF2GOHX7T54F7DX2

not attested not anchored not stored refs pending

Purely inseparable extensions and ramification filtrations

Haoyu Hu

arxiv:1804.08115 v1 · 2018-04-22 · math.AG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUS2VGOEIAUF2GOHX7T54F7DX2}

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	2026-05-18T00:17:49.482549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b525aa99c440285d19c7bfe7de17e3bea58ef348de18d0efd15b502580ef7bfe

Aliases

arxiv: 1804.08115 · arxiv_version: 1804.08115v1 · doi: 10.48550/arxiv.1804.08115 · pith_short_12: WUS2VGOEIAUF · pith_short_16: WUS2VGOEIAUF2GOH · pith_short_8: WUS2VGOE

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/WUS2VGOEIAUF2GOHX7T54F7DX2 \
  | 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: b525aa99c440285d19c7bfe7de17e3bea58ef348de18d0efd15b502580ef7bfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0b6ebb7c40000b34cd551ba8adc96f68483de32ffc093348746ab4752e69c4a",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-04-22T14:05:21Z",
    "title_canon_sha256": "0fec0d7d7bee2bb75cc936c141e8d778519f6857d99bf72283e4ce37e953f201"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08115",
    "kind": "arxiv",
    "version": 1
  }
}