Pith Number

pith:Z66ANV4V

pith:2018:Z66ANV4VE3EXLOX3YJCEN27EWA

not attested not anchored not stored refs pending

Acoustic boundary layers as boundary conditions

Anders Bernland, Daniel Noreland, Martin Berggren

arxiv:1801.04177 v2 · 2018-01-12 · physics.comp-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{Z66ANV4VE3EXLOX3YJCEN27EWA}

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	2026-05-18T00:09:27.498370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfbc06d79526c975bafbc24446ebe4b020cd998887958f2f9ae49c039cff7c28

Aliases

arxiv: 1801.04177 · arxiv_version: 1801.04177v2 · doi: 10.48550/arxiv.1801.04177 · pith_short_12: Z66ANV4VE3EX · pith_short_16: Z66ANV4VE3EXLOX3 · pith_short_8: Z66ANV4V

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/Z66ANV4VE3EXLOX3YJCEN27EWA \
  | 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: cfbc06d79526c975bafbc24446ebe4b020cd998887958f2f9ae49c039cff7c28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b13b28a223ab94d6067ad6c591878322a3331f8c9492d554f8990093e6e51609",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2018-01-12T14:26:17Z",
    "title_canon_sha256": "4d618f4ee024c93ca5be05a5dabaae956fe94521ad26d66e6751f88ae952239b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04177",
    "kind": "arxiv",
    "version": 2
  }
}