Pith Number

pith:OC2AJZAI

pith:2016:OC2AJZAIMPL7TEVYUUGE3BDGLN

not attested not anchored not stored refs pending

Two-dimensional Phononic Crystals with Acoustic-Band Negative Refraction

Hossein Sadeghi, Sia Nemat-Nasser

arxiv:1612.00037 v1 · 2016-11-30 · 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{OC2AJZAIMPL7TEVYUUGE3BDGLN}

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	2026-05-18T00:56:06.984020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70b404e40863d7f992b8a50c4d84665b6f79788f80e772f27783245b5d27a50f

Aliases

arxiv: 1612.00037 · arxiv_version: 1612.00037v1 · doi: 10.48550/arxiv.1612.00037 · pith_short_12: OC2AJZAIMPL7 · pith_short_16: OC2AJZAIMPL7TEVY · pith_short_8: OC2AJZAI

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/OC2AJZAIMPL7TEVYUUGE3BDGLN \
  | 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: 70b404e40863d7f992b8a50c4d84665b6f79788f80e772f27783245b5d27a50f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84525f305e64718a93cb4448d9fa1b7361b856eb443aa5a59ca94ba21ca102a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2016-11-30T21:22:07Z",
    "title_canon_sha256": "2b399225c51d95e20afd312550fd455eaf083e63a4bd78b48bb2cc8537ba30ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.00037",
    "kind": "arxiv",
    "version": 1
  }
}