Pith Number

pith:4K5TFCLE

pith:2015:4K5TFCLEMLUPJ34RYWHGEQRNTM

not attested not anchored not stored refs pending

Nested Antichains for WS1S

Lukas Holik, Ondrej Lengal, Tomas Fiedor, Tomas Vojnar

arxiv:1501.03849 v1 · 2015-01-15 · 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{4K5TFCLEMLUPJ34RYWHGEQRNTM}

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	2026-05-18T02:29:16.897880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2bb32896462e8f4ef91c58e62422d9b1c503eaf1174ed2e9dea3243e5793d52

Aliases

arxiv: 1501.03849 · arxiv_version: 1501.03849v1 · doi: 10.48550/arxiv.1501.03849 · pith_short_12: 4K5TFCLEMLUP · pith_short_16: 4K5TFCLEMLUPJ34R · pith_short_8: 4K5TFCLE

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/4K5TFCLEMLUPJ34RYWHGEQRNTM \
  | 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: e2bb32896462e8f4ef91c58e62422d9b1c503eaf1174ed2e9dea3243e5793d52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2da1016146b0733d0e3edc52b956935f15bdd15ac41f306cd903431db86820cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-01-15T23:15:08Z",
    "title_canon_sha256": "6dc57d1979f3e3ce60720b2e99a649e97ca22356e4853de1aba8e21f28336db3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03849",
    "kind": "arxiv",
    "version": 1
  }
}