Pith Number

pith:XWH3KPHI

pith:2018:XWH3KPHIHILBKRLRCGOMAIEI4H

not attested not anchored not stored refs pending

Inverse problem of potential theory

A. G. Ramm

arxiv:1801.04237 v1 · 2018-01-12 · 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{XWH3KPHIHILBKRLRCGOMAIEI4H}

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	2026-05-18T00:26:09.412883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd8fb53ce83a16154571119cc02088e1efda5d42db351184865b096fed8967cf

Aliases

arxiv: 1801.04237 · arxiv_version: 1801.04237v1 · doi: 10.48550/arxiv.1801.04237 · pith_short_12: XWH3KPHIHILB · pith_short_16: XWH3KPHIHILBKRLR · pith_short_8: XWH3KPHI

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/XWH3KPHIHILBKRLRCGOMAIEI4H \
  | 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: bd8fb53ce83a16154571119cc02088e1efda5d42db351184865b096fed8967cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6ee43c20b091c7a57859f08720f046b80c21c5fe7003a606a32afa1c5c9b6da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-01-12T17:06:29Z",
    "title_canon_sha256": "f62aedcb3eacf76f8ce010c8ad1f46faa69e3be1796132068dfa81fc306e6a24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04237",
    "kind": "arxiv",
    "version": 1
  }
}