Pith Number

pith:4OPXVQEC

pith:2018:4OPXVQECSF6GE6ANRRYZDQ5PIJ

not attested not anchored not stored refs pending

Galois Theory - a first course

Brent Everitt

arxiv:1804.04657 v1 · 2018-04-12 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4OPXVQECSF6GE6ANRRYZDQ5PIJ}

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	2026-05-18T00:18:35.377372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e39f7ac082917c62780d8c7191c3af424cd14d91791f555f79ef04344639a17f

Aliases

arxiv: 1804.04657 · arxiv_version: 1804.04657v1 · doi: 10.48550/arxiv.1804.04657 · pith_short_12: 4OPXVQECSF6G · pith_short_16: 4OPXVQECSF6GE6AN · pith_short_8: 4OPXVQEC

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/4OPXVQECSF6GE6ANRRYZDQ5PIJ \
  | 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: e39f7ac082917c62780d8c7191c3af424cd14d91791f555f79ef04344639a17f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2452246a5d0351055883cdae7c540bfbb01fe4a26fde0a9290a7dc448972277",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-04-12T12:20:18Z",
    "title_canon_sha256": "c3ac5054a1a7a0e671f016325b0844961c4e03b6f24379a1ec4172971f641019"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04657",
    "kind": "arxiv",
    "version": 1
  }
}