Pith Number

pith:BR6BHKMN

pith:2018:BR6BHKMNZFRGC66AJ47ADZBZSH

not attested not anchored not stored refs pending

Non-reciprocal sound propagation in space-time modulated media

Chen Shen, Junfei Li, Steven A. Cummer, Yangbo Xie

arxiv:1811.04130 v1 · 2018-10-20 · physics.app-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{BR6BHKMNZFRGC66AJ47ADZBZSH}

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	2026-05-17T23:47:19.995950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c7c13a98dc962617bc04f3e01e43991c9a2438aa436d37ee18f06d7cdb8a5ef

Aliases

arxiv: 1811.04130 · arxiv_version: 1811.04130v1 · doi: 10.48550/arxiv.1811.04130 · pith_short_12: BR6BHKMNZFRG · pith_short_16: BR6BHKMNZFRGC66A · pith_short_8: BR6BHKMN

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/BR6BHKMNZFRGC66AJ47ADZBZSH \
  | 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: 0c7c13a98dc962617bc04f3e01e43991c9a2438aa436d37ee18f06d7cdb8a5ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8544bc8c23b469dfe61c0e5bdc6ffcf328a83451d4e5db02b90e7795275c747c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2018-10-20T02:31:19Z",
    "title_canon_sha256": "4cbd5304bc17af05d678889b79bfa18574e03fab17fa774b29993c86d67f891a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04130",
    "kind": "arxiv",
    "version": 1
  }
}