Pith Number

pith:HYBN2NJN

pith:2016:HYBN2NJNOEXORVQXMX2C4TNMAN

not attested not anchored not stored refs pending

Sequential subspace optimization for nonlinear inverse problems

Anne Wald, Thomas Schuster

arxiv:1602.06781 v1 · 2016-02-22 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HYBN2NJNOEXORVQXMX2C4TNMAN}

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	2026-05-18T01:20:13.179195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e02dd352d712ee8d61765f42e4dac034c88257e8a3fd9bb0f1116bd9d293374

Aliases

arxiv: 1602.06781 · arxiv_version: 1602.06781v1 · doi: 10.48550/arxiv.1602.06781 · pith_short_12: HYBN2NJNOEXO · pith_short_16: HYBN2NJNOEXORVQX · pith_short_8: HYBN2NJN

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/HYBN2NJNOEXORVQXMX2C4TNMAN \
  | 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: 3e02dd352d712ee8d61765f42e4dac034c88257e8a3fd9bb0f1116bd9d293374

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ccdbc08cb33ccb7cbbca24ee53b3026a3cc8c52e8482a360a974d0f09ba6d1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-02-22T14:12:07Z",
    "title_canon_sha256": "7df2b23bba663f24df98fc84ab34bf7ac772fd6cf3d6130c5928fb290035f5b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06781",
    "kind": "arxiv",
    "version": 1
  }
}