Pith Number

pith:OQN3ZD25

pith:2015:OQN3ZD25H2QKKDQJSP3UNQGALW

not attested not anchored not stored refs pending

Symbolic-numeric methods for improving structural analysis of differential-algebraic equation systems

Guangning Tan, John D. Pryce, Ned S. Nedialkov

arxiv:1505.03445 v1 · 2015-05-13 · cs.SC · cs.NA

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\usepackage{pith}
\pithnumber{OQN3ZD25H2QKKDQJSP3UNQGALW}

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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.

Cited by

1 paper in Pith

Improved Structural Methods for Nonlinear Differential-Algebraic Equations via Combinatorial Relaxation

Receipt and verification

First computed	2026-05-18T02:12:09.139510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

741bbc8f5d3ea0a50e0993f746c0c05db3dd9c4ffcdc121d9de107875db2a8fa

Aliases

arxiv: 1505.03445 · arxiv_version: 1505.03445v1 · doi: 10.48550/arxiv.1505.03445 · pith_short_12: OQN3ZD25H2QK · pith_short_16: OQN3ZD25H2QKKDQJ · pith_short_8: OQN3ZD25

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/OQN3ZD25H2QKKDQJSP3UNQGALW \
  | 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: 741bbc8f5d3ea0a50e0993f746c0c05db3dd9c4ffcdc121d9de107875db2a8fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3ed2b5f70c0303514f5ee16e96c2faf328b874b1cd0679db31789e3adff2795",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2015-05-13T16:11:42Z",
    "title_canon_sha256": "af34950febdd1af9d030b84a1a88555dbf74ae6f5424a42e77b4c8d4687c480d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03445",
    "kind": "arxiv",
    "version": 1
  }
}