Pith Number

pith:MHVJRQNY

pith:2014:MHVJRQNYFUBIL72BUKOGD2TEMF

not attested not anchored not stored refs pending

A Logic for Reasoning about Evidence

Joseph Y. Halpern, Riccardo Pucella

arxiv:1407.7185 v1 · 2014-07-27 · 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{MHVJRQNYFUBIL72BUKOGD2TEMF}

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	2026-05-18T02:46:23.708744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61ea98c1b82d0285ff41a29c61ea646163618a65c1dfddd8b6ac6fe9daf43573

Aliases

arxiv: 1407.7185 · arxiv_version: 1407.7185v1 · doi: 10.48550/arxiv.1407.7185 · pith_short_12: MHVJRQNYFUBI · pith_short_16: MHVJRQNYFUBIL72B · pith_short_8: MHVJRQNY

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/MHVJRQNYFUBIL72BUKOGD2TEMF \
  | 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: 61ea98c1b82d0285ff41a29c61ea646163618a65c1dfddd8b6ac6fe9daf43573

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07cd79e3e2da696c47a6befb77529af8e6e97573e57ec3b0c3020e72d08e6e62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2014-07-27T05:25:52Z",
    "title_canon_sha256": "3b36c1c8f7258462186c3b84ef15f851e093dfb743a59c9b01f98d7ad367f9f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7185",
    "kind": "arxiv",
    "version": 1
  }
}