Pith Number

pith:H4Y6CLKT

pith:2015:H4Y6CLKTDNABFMSKZ67ZKWI3BD

not attested not anchored not stored refs pending

Transparent gradient index lens for underwater sound based on phase advance

Christina J. Naify, Christopher N. Layman, Daniel Torrent, David C. Calvo, Elizabeth A. Skerritt, Gregory J. Orris, Jose Sanchez-Dehesa, Michael Nicholas, Theodore P. Martin

arxiv:1506.05140 v1 · 2015-06-16 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4Y6CLKTDNABFMSKZ67ZKWI3BD}

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	2026-05-18T01:32:29.076616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f31e12d531b4012b24acfbf95591b08d1f4a922fa5b1bccf87db4213498b4d3

Aliases

arxiv: 1506.05140 · arxiv_version: 1506.05140v1 · doi: 10.48550/arxiv.1506.05140 · pith_short_12: H4Y6CLKTDNAB · pith_short_16: H4Y6CLKTDNABFMSK · pith_short_8: H4Y6CLKT

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/H4Y6CLKTDNABFMSKZ67ZKWI3BD \
  | 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: 3f31e12d531b4012b24acfbf95591b08d1f4a922fa5b1bccf87db4213498b4d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2272905a709f0b14b5d735be98e311c8e82b61c9edf517b6e926d9eb26aa0a12",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2015-06-16T20:24:49Z",
    "title_canon_sha256": "08163ec8da433073ea0a309af9fb911cd5f9d9476c3fa058c2c9c0275c9d7830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.05140",
    "kind": "arxiv",
    "version": 1
  }
}