Pith Number

pith:IHEVRVNU

pith:2018:IHEVRVNUCMHR7EODLJF5764LZG

not attested not anchored not stored refs pending

Mathematical Proofs 101: How Proofs Should Be Read, Written, and Taught

Christopher M. van Bommel

arxiv:1806.06892 v1 · 2018-06-18 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IHEVRVNUCMHR7EODLJF5764LZG}

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	2026-05-18T00:12:58.202389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41c958d5b4130f1f91c35a4bdffb8bc98a08be5524106f0970b6d6e1a6e0007f

Aliases

arxiv: 1806.06892 · arxiv_version: 1806.06892v1 · doi: 10.48550/arxiv.1806.06892 · pith_short_12: IHEVRVNUCMHR · pith_short_16: IHEVRVNUCMHR7EOD · pith_short_8: IHEVRVNU

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/IHEVRVNUCMHR7EODLJF5764LZG \
  | 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: 41c958d5b4130f1f91c35a4bdffb8bc98a08be5524106f0970b6d6e1a6e0007f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbbfdda72f203452db7a696113ea56e44b4f9679cb76b31005eb0cc2558a516d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2018-06-18T18:55:32Z",
    "title_canon_sha256": "5a9395170cd68d7d9d9fb9bcc688a234aaeddfadaa957d66af82dba82dcc3f1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06892",
    "kind": "arxiv",
    "version": 1
  }
}