Pith Number

pith:4OBOBITQ

pith:2018:4OBOBITQUCE73DIZEGEG5762F3

not attested not anchored not stored refs pending

Inverse random source problems for time-harmonic acoustic and elastic waves

Jianliang Li, Peijun Li, Tapio Helin

arxiv:1811.12478 v1 · 2018-11-29 · 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{4OBOBITQUCE73DIZEGEG5762F3}

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	2026-05-17T23:59:29.507595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e382e0a270a089fd8d1921886effda2eea05776e9aa4ca8135ed48aee7e8730a

Aliases

arxiv: 1811.12478 · arxiv_version: 1811.12478v1 · doi: 10.48550/arxiv.1811.12478 · pith_short_12: 4OBOBITQUCE7 · pith_short_16: 4OBOBITQUCE73DIZ · pith_short_8: 4OBOBITQ

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/4OBOBITQUCE73DIZEGEG5762F3 \
  | 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: e382e0a270a089fd8d1921886effda2eea05776e9aa4ca8135ed48aee7e8730a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94e3116226a1504c1780a2d1fd0ac90b0b3418404319f454811bb911795b72bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-11-29T20:48:27Z",
    "title_canon_sha256": "171822ef9a73a99e858f35eb8a5c5797c335e5b9d6ae565213988852ec04ce53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.12478",
    "kind": "arxiv",
    "version": 1
  }
}