Pith Number

pith:5EPRWQVF

pith:2018:5EPRWQVFVGHFRAV5MR72O3RAAI

not attested not anchored not stored refs pending

Distinct orders dividing each other on both sides

Garrett Ervin

arxiv:1810.10913 v1 · 2018-10-25 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5EPRWQVFVGHFRAV5MR72O3RAAI}

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	2026-05-18T00:02:18.874120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e91f1b42a5a98e5882bd647fa76e200206a3753df09a09e5df2b1c82ad9b7abd

Aliases

arxiv: 1810.10913 · arxiv_version: 1810.10913v1 · doi: 10.48550/arxiv.1810.10913 · pith_short_12: 5EPRWQVFVGHF · pith_short_16: 5EPRWQVFVGHFRAV5 · pith_short_8: 5EPRWQVF

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/5EPRWQVFVGHFRAV5MR72O3RAAI \
  | 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: e91f1b42a5a98e5882bd647fa76e200206a3753df09a09e5df2b1c82ad9b7abd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a64cb794e7d633bee6f4025c88d5c89b780aed42ccf252701e5bbe1a619e036",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-10-25T15:02:41Z",
    "title_canon_sha256": "ea4f3324e076b6c5cbc2f987c1e8a60dd2c0ff4c69b2a5e6d8dcfe7768a202f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.10913",
    "kind": "arxiv",
    "version": 1
  }
}