Pith Number

pith:4SXXKEAI

pith:2018:4SXXKEAIEP63F6JJ2KYJBVIAZC

not attested not anchored not stored refs pending

Scattering of co-current surface waves on an analogue black hole

Alessandro Fabbri, Germain Rousseaux, L\'eo-Paul Euv\'e, Nicolas James, Scott Robertson

arxiv:1806.05539 v3 · 2018-06-14 · gr-qc · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4SXXKEAIEP63F6JJ2KYJBVIAZC}

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	2026-07-05T00:53:48.972787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4af75100823fdb2f929d2b090d500c8845f898dc3214c61780a635993372c0d

Aliases

arxiv: 1806.05539 · arxiv_version: 1806.05539v3 · doi: 10.48550/arxiv.1806.05539 · pith_short_12: 4SXXKEAIEP63 · pith_short_16: 4SXXKEAIEP63F6JJ · pith_short_8: 4SXXKEAI

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/4SXXKEAIEP63F6JJ2KYJBVIAZC \
  | 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: e4af75100823fdb2f929d2b090d500c8845f898dc3214c61780a635993372c0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "989016c6cebe366fe62b2a0b22bb0971bba5feb6cb96a88fd6c38edd82920e1a",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-06-14T13:39:02Z",
    "title_canon_sha256": "a91efa78904301785492500e7484be0d0b1df358fe65cdb2c6046f59c8bb966c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.05539",
    "kind": "arxiv",
    "version": 3
  }
}