Pith Number

pith:IJKDSCHR

pith:2005:IJKDSCHRUMCNAADMUPXGS762ZG

not attested not anchored not stored refs pending

A Least Squares Functional for Solving Inverse Sturm-Liouville Problems

Norbert Roehrl

arxiv:math/0502407 v2 · 2005-02-18 · math.NA · cs.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{IJKDSCHRUMCNAADMUPXGS762ZG}

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.

Cited by

1 paper in Pith

Inverse Quantum Potential Reconstruction via Generalized Bertlmann-Martin Inequalities

Receipt and verification

First computed	2026-06-03T22:06:16.416400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42543908f1a304d0006ca3ee697fdac9a759721349730b32c3e2435bf29e87ee

Aliases

arxiv: math/0502407 · arxiv_version: math/0502407v2 · doi: 10.48550/arxiv.math/0502407 · pith_short_12: IJKDSCHRUMCN · pith_short_16: IJKDSCHRUMCNAADM · pith_short_8: IJKDSCHR

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/IJKDSCHRUMCNAADMUPXGS762ZG \
  | 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: 42543908f1a304d0006ca3ee697fdac9a759721349730b32c3e2435bf29e87ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2821b69da4b347570c573f07f5ca3b52fb3e0fc354c63035f3e3aa18473ab0cc",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2005-02-18T20:10:18Z",
    "title_canon_sha256": "6a8c0b9eafa16b1fe00ff47f6f6bad2fbc71dad3bdaff6543e8a720b694c5d3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0502407",
    "kind": "arxiv",
    "version": 2
  }
}