Pith Number

pith:TCUJQMPR

pith:2004:TCUJQMPROQEXHHFJQEMFABUMSS

not attested not anchored not stored refs pending

Numerical Method for Solving Obstacle Scattering Problems by an Algorithm Based on the Modified Rayleigh Conjecture

A.G.Ramm, W.Chen

arxiv:math/0408193 v1 · 2004-08-14 · 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{TCUJQMPROQEXHHFJQEMFABUMSS}

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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.

Receipt and verification

First computed	2026-05-18T01:05:26.103286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98a89831f17409739ca9811850068c9497611b007fd9ac02a03a777318f69d0b

Aliases

arxiv: math/0408193 · arxiv_version: math/0408193v1 · doi: 10.48550/arxiv.math/0408193 · pith_short_12: TCUJQMPROQEX · pith_short_16: TCUJQMPROQEXHHFJ · pith_short_8: TCUJQMPR

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/TCUJQMPROQEXHHFJQEMFABUMSS \
  | 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: 98a89831f17409739ca9811850068c9497611b007fd9ac02a03a777318f69d0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb8728e201f59426a19b7182a683bb1119631528c183b7adbe00b675b1102cf3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2004-08-14T15:29:47Z",
    "title_canon_sha256": "fc7ed686c5f6d1cac222b31b4ce6a26225cbdbf056edf52b837a9a7f5cf32689"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0408193",
    "kind": "arxiv",
    "version": 1
  }
}