Pith Number

pith:Y4IFHSK7

pith:2017:Y4IFHSK76QF56V4UAHDINF4IYX

not attested not anchored not stored refs pending

Design of an impedance matching acoustic bend

Han Jia, Jun Yang, Wenjia Lu, Yuzhen Yang, Zhaoyong Sun

arxiv:1703.02171 v1 · 2017-03-07 · 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{Y4IFHSK76QF56V4UAHDINF4IYX}

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	2026-05-18T00:49:20.564778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c71053c95ff40bdf579401c6869788c5dc0d8d05e57428077b059069efa1759f

Aliases

arxiv: 1703.02171 · arxiv_version: 1703.02171v1 · doi: 10.48550/arxiv.1703.02171 · pith_short_12: Y4IFHSK76QF5 · pith_short_16: Y4IFHSK76QF56V4U · pith_short_8: Y4IFHSK7

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/Y4IFHSK76QF56V4UAHDINF4IYX \
  | 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: c71053c95ff40bdf579401c6869788c5dc0d8d05e57428077b059069efa1759f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a602076108d7d44e7f9863f36ffd3c0ff9b5d1b536dcd1751aa1bf32a0fe5c26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2017-03-07T01:39:02Z",
    "title_canon_sha256": "ccf9caee4f0cbc086c49a48d4edc004ffdf64363ddfba5df17f83d8429f5a431"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02171",
    "kind": "arxiv",
    "version": 1
  }
}