Pith Number

pith:L7IX3A24

pith:2015:L7IX3A24ME43UPQZKDNP3H6PFT

not attested not anchored not stored refs pending

Comment on "Characterization of an acoustic spherical cloak", Inverse Problems 31(3):035001, 2015

A. N. Norris

arxiv:1511.02908 v1 · 2015-11-06 · 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{L7IX3A24ME43UPQZKDNP3H6PFT}

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	2026-05-18T01:27:17.477722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fd17d835c6139ba3e1950dafd9fcf2cf1624b62ef97f52d3cae5b8acf6d2265

Aliases

arxiv: 1511.02908 · arxiv_version: 1511.02908v1 · doi: 10.48550/arxiv.1511.02908 · pith_short_12: L7IX3A24ME43 · pith_short_16: L7IX3A24ME43UPQZ · pith_short_8: L7IX3A24

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/L7IX3A24ME43UPQZKDNP3H6PFT \
  | 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: 5fd17d835c6139ba3e1950dafd9fcf2cf1624b62ef97f52d3cae5b8acf6d2265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6154d2002eaa7a4f1e55538b911df528bb823dad1ca2194b56089ae19b184124",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2015-11-06T17:25:14Z",
    "title_canon_sha256": "9ebf72b22900655ea75019a6013e4efece96fa3bb4618fc9ba505278bc692c26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.02908",
    "kind": "arxiv",
    "version": 1
  }
}