Pith Number

pith:TJUHJH74

pith:2019:TJUHJH74BHWSHOCRWTOGQYJYSL

not attested not anchored not stored refs pending

An FPT algorithm for orthogonal buttons and scissors

Dekel Tsur

arxiv:1907.10230 v1 · 2019-07-24 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TJUHJH74BHWSHOCRWTOGQYJYSL}

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	2026-05-17T23:39:38.551733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a68749ffc09ed23b851b4dc68613892e1c67f4935482799c5cfb76030d9555a

Aliases

arxiv: 1907.10230 · arxiv_version: 1907.10230v1 · doi: 10.48550/arxiv.1907.10230 · pith_short_12: TJUHJH74BHWS · pith_short_16: TJUHJH74BHWSHOCR · pith_short_8: TJUHJH74

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/TJUHJH74BHWSHOCRWTOGQYJYSL \
  | 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: 9a68749ffc09ed23b851b4dc68613892e1c67f4935482799c5cfb76030d9555a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79a03dae994507079ec7943a6330c0677e1826d1b584f2b2b4a22e45d0d13ffb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-07-24T04:21:12Z",
    "title_canon_sha256": "8b935df520e0e86b120f6bd10d4b81741193b3b6ee8d211a8be771a165ef4beb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10230",
    "kind": "arxiv",
    "version": 1
  }
}