Pith Number

pith:AXMVALTG

pith:2019:AXMVALTGF67G4O34PZP4XEMB56

not attested not anchored not stored refs pending

Inverse acoustic scattering problems with multi-frequency sparse backscattering far field data

Xia Ji, XiaoDong Liu

arxiv:1906.02008 v2 · 2019-06-05 · 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{AXMVALTGF67G4O34PZP4XEMB56}

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	2026-07-05T00:12:37.726005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05d9502e662fbe6e3b7c7e5fcb9181ef95479e87a5532ceddc81b258f8221288

Aliases

arxiv: 1906.02008 · arxiv_version: 1906.02008v2 · doi: 10.48550/arxiv.1906.02008 · pith_short_12: AXMVALTGF67G · pith_short_16: AXMVALTGF67G4O34 · pith_short_8: AXMVALTG

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/AXMVALTGF67G4O34PZP4XEMB56 \
  | 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: 05d9502e662fbe6e3b7c7e5fcb9181ef95479e87a5532ceddc81b258f8221288

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f72c31b227929c9e99e57cb2a3aac0ded50945e0aba4d7b10bc821ce42d988e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-06-05T13:01:45Z",
    "title_canon_sha256": "7363e0b0b8c2ce39cbc8fa78b45db2e24122a3b8b0d3665b7ebf6460294f633a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02008",
    "kind": "arxiv",
    "version": 2
  }
}