Pith Number

pith:3EURSNZY

pith:2018:3EURSNZYMKPPGQAR6WHUBFS2V4

not attested not anchored not stored refs pending

Modality via Iterated Enrichment

Yoshihiko Kakutani, Yuichi Nishiwaki, Yuito Murase

arxiv:1804.02809 v2 · 2018-04-09 · 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{3EURSNZYMKPPGQAR6WHUBFS2V4}

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	2026-05-18T00:02:19.400693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d929193738629ef34011f58f40965aaf28099f90616e3ca2d4ca9062a83eacc4

Aliases

arxiv: 1804.02809 · arxiv_version: 1804.02809v2 · doi: 10.48550/arxiv.1804.02809 · pith_short_12: 3EURSNZYMKPP · pith_short_16: 3EURSNZYMKPPGQAR · pith_short_8: 3EURSNZY

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/3EURSNZYMKPPGQAR6WHUBFS2V4 \
  | 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: d929193738629ef34011f58f40965aaf28099f90616e3ca2d4ca9062a83eacc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2223a9d9681d424e35c3f09808bcdff9f487dbef449735b261f3158a278cb0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-04-09T04:14:38Z",
    "title_canon_sha256": "a94d0b79774560208494903597048d88b56ccec1f946dbb35546fa264bdb5d44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02809",
    "kind": "arxiv",
    "version": 2
  }
}