Pith Number

pith:7C5DFDRN

pith:2019:7C5DFDRNWLPEB7TQPMKW3VUI3K

not attested not anchored not stored refs pending

The order type of scattered context-free orderings of rank one is computable

Kitti Gelle, Szabolcs Ivan

arxiv:1907.11573 v1 · 2019-07-26 · cs.FL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7C5DFDRNWLPEB7TQPMKW3VUI3K}

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	2026-05-17T23:39:28.641447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8ba328e2db2de40fe707b156dd688da98b3d480e29f2662fc1ccbd63d818d7c

Aliases

arxiv: 1907.11573 · arxiv_version: 1907.11573v1 · doi: 10.48550/arxiv.1907.11573 · pith_short_12: 7C5DFDRNWLPE · pith_short_16: 7C5DFDRNWLPEB7TQ · pith_short_8: 7C5DFDRN

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/7C5DFDRNWLPEB7TQPMKW3VUI3K \
  | 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: f8ba328e2db2de40fe707b156dd688da98b3d480e29f2662fc1ccbd63d818d7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d240fa325116302e5e5c8ad994f392b85f34c849430ff8b8ff48398b2f38e3da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2019-07-26T13:41:52Z",
    "title_canon_sha256": "f347d1132128489844d1c3b646d6c6d1302c38bf047a203649520648df645760"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.11573",
    "kind": "arxiv",
    "version": 1
  }
}