Pith Number

pith:CMPBJM5X

pith:2004:CMPBJM5X5ETZBLJYFSMXHCX4K6

not attested not anchored not stored refs pending

Inverse boundary value problems for systems of partial differential equations

Gregory Eskin, James Ralston

arxiv:math/0403507 v1 · 2004-03-30 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CMPBJM5X5ETZBLJYFSMXHCX4K6}

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	2026-05-18T00:37:24.936155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

131e14b3b7e92790ad382c99738afc57876a22d1916223e707681d0c937c03d6

Aliases

arxiv: math/0403507 · arxiv_version: math/0403507v1 · doi: 10.48550/arxiv.math/0403507 · pith_short_12: CMPBJM5X5ETZ · pith_short_16: CMPBJM5X5ETZBLJY · pith_short_8: CMPBJM5X

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/CMPBJM5X5ETZBLJYFSMXHCX4K6 \
  | 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: 131e14b3b7e92790ad382c99738afc57876a22d1916223e707681d0c937c03d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "510a304ca463ea609fd5deed4dfb9da56d4118b636f7d77b153e649db11d2c56",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AP",
    "submitted_at": "2004-03-30T05:24:50Z",
    "title_canon_sha256": "3a4581c9e88fdf633ecd5f3ce184a9218adca7ac507331f2ededa02bab34f764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0403507",
    "kind": "arxiv",
    "version": 1
  }
}