Pith Number

pith:NTKRPDW2

pith:2016:NTKRPDW2XDISOKAJQQD62XCMTR

not attested not anchored not stored refs pending

Proving Infinitary Formulas

Amelia Harrison, Julian Michael, Vladimir Lifschitz

arxiv:1608.01626 v1 · 2016-08-04 · cs.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{NTKRPDW2XDISOKAJQQD62XCMTR}

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	2026-05-18T01:09:51.960037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cd5178edab8d12728098407ed5c4c9c76118476fbfad2f7881c7dbc71ffce3b

Aliases

arxiv: 1608.01626 · arxiv_version: 1608.01626v1 · doi: 10.48550/arxiv.1608.01626 · pith_short_12: NTKRPDW2XDIS · pith_short_16: NTKRPDW2XDISOKAJ · pith_short_8: NTKRPDW2

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/NTKRPDW2XDISOKAJQQD62XCMTR \
  | 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: 6cd5178edab8d12728098407ed5c4c9c76118476fbfad2f7881c7dbc71ffce3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1556b82f2987dc3417220ce891908d28c9e8b889e5096a480881c418c1bd173",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-08-04T17:46:05Z",
    "title_canon_sha256": "165132bbdbad4f5bcc4141ec1ede630ebba3887d9f7cc52e3aaef07552dcb51c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.01626",
    "kind": "arxiv",
    "version": 1
  }
}