Pith Number

pith:HLONS2TH

pith:2018:HLONS2THHBVAJWLO6235EGS33V

not attested not anchored not stored refs pending

Ultra-thin low frequency perfect sound absorber with high ratio of active area

Yves Aur\'egan

arxiv:1811.00897 v1 · 2018-11-01 · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HLONS2THHBVAJWLO6235EGS33V}

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	2026-05-17T23:59:13.824648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3adcd96a67386a04d96ef6b7d21a5bdd61b57fe68b039b8984ea60973b74ef0f

Aliases

arxiv: 1811.00897 · arxiv_version: 1811.00897v1 · doi: 10.48550/arxiv.1811.00897 · pith_short_12: HLONS2THHBVA · pith_short_16: HLONS2THHBVAJWLO · pith_short_8: HLONS2TH

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/HLONS2THHBVAJWLO6235EGS33V \
  | 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: 3adcd96a67386a04d96ef6b7d21a5bdd61b57fe68b039b8984ea60973b74ef0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "551bfd1ace1537e3cf5dd32a2ea1f423de40dd8d4f68e576447a7cfa693d6581",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2018-11-01T10:52:15Z",
    "title_canon_sha256": "163e186c28d2af861d42869072e3fea6d71c68c301eabc3c0b5b923615326eb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00897",
    "kind": "arxiv",
    "version": 1
  }
}