Pith Number

pith:QNZ4FZSZ

pith:2012:QNZ4FZSZ3X4DQBU25XZXDJYGRS

not attested not anchored not stored refs pending

Alternative to Ritt's Pseudodivision for finding the input-output equations in algebraic structural identifiability analysis

Chris Anderson, Joseph J. DiStefano III, Nicolette Meshkat

arxiv:1203.4485 v1 · 2012-03-20 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QNZ4FZSZ3X4DQBU25XZXDJYGRS}

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	2026-05-18T03:59:38.945870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8373c2e659ddf838069aedf371a7068cb3c7bda5d2a73a01018f623ca910a3a4

Aliases

arxiv: 1203.4485 · arxiv_version: 1203.4485v1 · doi: 10.48550/arxiv.1203.4485 · pith_short_12: QNZ4FZSZ3X4D · pith_short_16: QNZ4FZSZ3X4DQBU2 · pith_short_8: QNZ4FZSZ

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/QNZ4FZSZ3X4DQBU25XZXDJYGRS \
  | 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: 8373c2e659ddf838069aedf371a7068cb3c7bda5d2a73a01018f623ca910a3a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15e983ef87c5c9236e717535eb01d9c4f77bbbda52a090e28455a8787ef669cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-03-20T16:12:30Z",
    "title_canon_sha256": "3c422afcc11c37931718a08ec971147769938b8b291ff9318b4e782bd4459da7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4485",
    "kind": "arxiv",
    "version": 1
  }
}