Pith Number

pith:37AR3WP6

pith:2014:37AR3WP6OWKQB76KB4XY4V35MY

not attested not anchored not stored refs pending

Inverse Scattering Approach on Tomography Problem Using Multi-frequency Data

Ying Li

arxiv:1404.7404 v1 · 2014-04-29 · 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{37AR3WP6OWKQB76KB4XY4V35MY}

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	2026-05-18T02:52:56.636380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfc11dd9fe759500ffca0f2f8e577d663fbe86da3ef85408fa4221336e932e2f

Aliases

arxiv: 1404.7404 · arxiv_version: 1404.7404v1 · doi: 10.48550/arxiv.1404.7404 · pith_short_12: 37AR3WP6OWKQ · pith_short_16: 37AR3WP6OWKQB76K · pith_short_8: 37AR3WP6

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/37AR3WP6OWKQB76KB4XY4V35MY \
  | 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: dfc11dd9fe759500ffca0f2f8e577d663fbe86da3ef85408fa4221336e932e2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f3e94eda1639d5f7f5efd32384a77f2efa7b6563b5a5b7a2c56aef1896e83f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-04-29T15:40:23Z",
    "title_canon_sha256": "6466445939a2add1992b4e655293659f66c916bb508f4053d83baa21df2dc2af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7404",
    "kind": "arxiv",
    "version": 1
  }
}