Pith Number

pith:5FBQNPJN

pith:1999:5FBQNPJNF72SPE2IHQSIOOXBRE

not attested not anchored not stored refs pending

An approximate method for solving inverse scattering problem with fixed-energy phase shifts

A.G.Ramm, W.Scheid

arxiv:math-ph/9911045 v1 · 1999-11-28 · math-ph · math.MP · 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{5FBQNPJNF72SPE2IHQSIOOXBRE}

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	2026-05-18T01:05:29.854791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e94306bd2d2ff52793483c24873ae18939c02d25b74f1f6c3ca105fbd7befc91

Aliases

arxiv: math-ph/9911045 · arxiv_version: math-ph/9911045v1 · doi: 10.48550/arxiv.math-ph/9911045 · pith_short_12: 5FBQNPJNF72S · pith_short_16: 5FBQNPJNF72SPE2I · pith_short_8: 5FBQNPJN

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/5FBQNPJNF72SPE2IHQSIOOXBRE \
  | 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: e94306bd2d2ff52793483c24873ae18939c02d25b74f1f6c3ca105fbd7befc91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf1303863f76a63b767db13e88d3410b5c8a03da417488535f2052b1ce7d2058",
    "cross_cats_sorted": [
      "math.MP",
      "math.NA"
    ],
    "license": "",
    "primary_cat": "math-ph",
    "submitted_at": "1999-11-28T00:05:15Z",
    "title_canon_sha256": "d72e95937819cd5a0d59eabeae204995a5e49d3a83ee24422ea01145697df8a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math-ph/9911045",
    "kind": "arxiv",
    "version": 1
  }
}