Pith Number

pith:2AZSHC5E

pith:2009:2AZSHC5EC6SMKVPUMWRIFMK4GI

not attested not anchored not stored refs pending

Ranking Functions for Size-Change Termination II

Amir M. Ben-Amram, Chin Soon Lee

arxiv:0903.4382 v4 · 2009-03-25 · 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{2AZSHC5EC6SMKVPUMWRIFMK4GI}

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	2026-05-18T01:37:40.468925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d033238ba417a4c555f465a282b15c3217c48ef5448a7e9030db374551065b45

Aliases

arxiv: 0903.4382 · arxiv_version: 0903.4382v4 · doi: 10.48550/arxiv.0903.4382 · pith_short_12: 2AZSHC5EC6SM · pith_short_16: 2AZSHC5EC6SMKVPU · pith_short_8: 2AZSHC5E

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/2AZSHC5EC6SMKVPUMWRIFMK4GI \
  | 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: d033238ba417a4c555f465a282b15c3217c48ef5448a7e9030db374551065b45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd8f73ed98cb4d53e221ba7c302d33c9d67446687cb3b965df4ab23325848763",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2009-03-25T17:47:30Z",
    "title_canon_sha256": "3e40a5637351a072724101e13a15a4ff9d6525b2a00454c9c53328699cadd73f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4382",
    "kind": "arxiv",
    "version": 4
  }
}