Pith Number

pith:JKDKJBCG

pith:2009:JKDKJBCGIBZGHAVD4U5FUNXDBQ

not attested not anchored not stored refs pending

Self collimation of ultrasound in a 3D sonic crystal

E. Soliveres, I. Perez-Arjona, K. Staliunas, V. Espinosa, V. Sanchez-Morcillo

arxiv:0902.1707 v2 · 2009-02-10 · cond-mat.mtrl-sci · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JKDKJBCGIBZGHAVD4U5FUNXDBQ}

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	2026-05-18T02:14:48.463160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a86a4844640726382a3e53a5a36e30c08312988c5641a65ab223b41d1a8f877

Aliases

arxiv: 0902.1707 · arxiv_version: 0902.1707v2 · doi: 10.48550/arxiv.0902.1707 · pith_short_12: JKDKJBCGIBZG · pith_short_16: JKDKJBCGIBZGHAVD · pith_short_8: JKDKJBCG

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/JKDKJBCGIBZGHAVD4U5FUNXDBQ \
  | 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: 4a86a4844640726382a3e53a5a36e30c08312988c5641a65ab223b41d1a8f877

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f508be14a31e0d23c8f3fc5d5bf821b2ad3042f6b54a0b09460f2f9f89fd269",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2009-02-10T17:31:29Z",
    "title_canon_sha256": "14d86f8dca1199401988a5ff80b6548760582489188f5bb9152f1cc76bf6d9ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1707",
    "kind": "arxiv",
    "version": 2
  }
}