Pith Number

pith:NE2IZ4IN

pith:2018:NE2IZ4INLBSQEFYWAA34YX2TR4

not attested not anchored not stored refs pending

Linear Tree Constraints

Martin Hofmann, Sabine Bauer

arxiv:1806.09818 v1 · 2018-06-26 · 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{NE2IZ4INLBSQEFYWAA34YX2TR4}

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	2026-05-18T00:12:23.261252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69348cf10d58650217160037cc5f538f3d4111e280c64e17512b12054ecabb4c

Aliases

arxiv: 1806.09818 · arxiv_version: 1806.09818v1 · doi: 10.48550/arxiv.1806.09818 · pith_short_12: NE2IZ4INLBSQ · pith_short_16: NE2IZ4INLBSQEFYW · pith_short_8: NE2IZ4IN

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/NE2IZ4INLBSQEFYWAA34YX2TR4 \
  | 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: 69348cf10d58650217160037cc5f538f3d4111e280c64e17512b12054ecabb4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5eb957ad95663ccd56df1fd4dd30c82c679b8bac9e8ef46ecf9cdee988141f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-06-26T07:16:06Z",
    "title_canon_sha256": "f4623ff39ee0293f3b2c2e7b9c0bac33274873d04465584fce30e503dcc2fee8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09818",
    "kind": "arxiv",
    "version": 1
  }
}