Pith Number

pith:EFLX4FOQ

pith:2019:EFLX4FOQYVWXQGXH33L2ZMCCLM

not attested not anchored not stored refs pending

Elementary Iterated Revision and the Levi Identity

Jake Chandler, Richard Booth

arxiv:1907.01224 v1 · 2019-07-02 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EFLX4FOQYVWXQGXH33L2ZMCCLM}

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	2026-05-17T23:41:40.920169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21577e15d0c56d781ae7ded7acb0425b2d6e1ab24162686918a57de46850214b

Aliases

arxiv: 1907.01224 · arxiv_version: 1907.01224v1 · doi: 10.48550/arxiv.1907.01224 · pith_short_12: EFLX4FOQYVWX · pith_short_16: EFLX4FOQYVWXQGXH · pith_short_8: EFLX4FOQ

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/EFLX4FOQYVWXQGXH33L2ZMCCLM \
  | 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: 21577e15d0c56d781ae7ded7acb0425b2d6e1ab24162686918a57de46850214b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e55b647081959b78a41ab6a386ab0e3fb8f111a1b874c64ebf4cbc21ab58187",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2019-07-02T08:14:38Z",
    "title_canon_sha256": "17df60d5272b7190f843943bb513271fcb38e52db2471a271173167532f12aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01224",
    "kind": "arxiv",
    "version": 1
  }
}