Pith Number

pith:XSMMZPQR

pith:2013:XSMMZPQRGDTIBBUQ67WAFVEXY5

not attested not anchored not stored refs pending

Shape identification and classification in echolocation

Habib Ammari, Han Wang, Minh Phuong Tran

arxiv:1308.5625 v1 · 2013-08-26 · cs.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{XSMMZPQRGDTIBBUQ67WAFVEXY5}

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	2026-05-18T03:15:03.940554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc98ccbe1130e6808690f7ec02d497c770613cb73a2c4c61cc201a398ae8e305

Aliases

arxiv: 1308.5625 · arxiv_version: 1308.5625v1 · doi: 10.48550/arxiv.1308.5625 · pith_short_12: XSMMZPQRGDTI · pith_short_16: XSMMZPQRGDTIBBUQ · pith_short_8: XSMMZPQR

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/XSMMZPQRGDTIBBUQ67WAFVEXY5 \
  | 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: bc98ccbe1130e6808690f7ec02d497c770613cb73a2c4c61cc201a398ae8e305

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d915a6bfa3d348dfe9ab894cf9d1682fc77cc4d15dd45035c9da437180466af6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2013-08-26T16:16:07Z",
    "title_canon_sha256": "f3c74c0682ef71d6b77b928147efb10781ce41bdd827cfdcbe7c4270ef342130"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5625",
    "kind": "arxiv",
    "version": 1
  }
}