Pith Number

pith:RX447Q3I

pith:2021:RX447Q3IAHZ7IB3LN5CQPGY3DL

not attested not anchored not stored refs pending

Data completion algorithms and their applications in inverse acoustic scattering with limited-aperture backscattering data

Bo Zhang, Fangfang Dou, Shixu Meng, XiaoDong Liu

arxiv:2106.11101 v1 · 2021-06-21 · math.AP · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RX447Q3IAHZ7IB3LN5CQPGY3DL}

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	2026-07-05T04:54:45.582874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8df9cfc36801f3f4076b6f45079b1b1ae0b68ab334f3277747bcc208a1309322

Aliases

arxiv: 2106.11101 · arxiv_version: 2106.11101v1 · doi: 10.48550/arxiv.2106.11101 · pith_short_12: RX447Q3IAHZ7 · pith_short_16: RX447Q3IAHZ7IB3L · pith_short_8: RX447Q3I

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/RX447Q3IAHZ7IB3LN5CQPGY3DL \
  | 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: 8df9cfc36801f3f4076b6f45079b1b1ae0b68ab334f3277747bcc208a1309322

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "730c4beea5364d6754edd755a654e802c029fb8d41e2fe2720dbe5c517a931a1",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2021-06-21T13:38:34Z",
    "title_canon_sha256": "026b58f28a232b6815afc22ad3e53522ab66f0091037caa97e7adff5b951da92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.11101",
    "kind": "arxiv",
    "version": 1
  }
}