Pith Number

pith:3YRWPIIS

pith:2015:3YRWPIISHVTCTABE7MOCPNDVBQ

not attested not anchored not stored refs pending

Recovering a polyhedral obstacle by a few backscattering measurements

Hongyu Liu, Jingzhi Li

arxiv:1502.01238 v1 · 2015-02-04 · math.AP · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3YRWPIISHVTCTABE7MOCPNDVBQ}

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	2026-05-18T02:27:57.689531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de2367a1123d66298024fb1c27b4750c36b957cc7afd0eb64a9e2048f13dc7f0

Aliases

arxiv: 1502.01238 · arxiv_version: 1502.01238v1 · doi: 10.48550/arxiv.1502.01238 · pith_short_12: 3YRWPIISHVTC · pith_short_16: 3YRWPIISHVTCTABE · pith_short_8: 3YRWPIIS

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/3YRWPIISHVTCTABE7MOCPNDVBQ \
  | 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: de2367a1123d66298024fb1c27b4750c36b957cc7afd0eb64a9e2048f13dc7f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "332728589ff81e71e8b163927880b20a1917a4f4f395355df0332c81a1329d20",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-02-04T15:44:28Z",
    "title_canon_sha256": "518663cff7c9d1ad5c5dee120426dffbd2923b7b6bb8219d5fb17c8e83b14cbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01238",
    "kind": "arxiv",
    "version": 1
  }
}