Pith Number

pith:NRTYF5QI

pith:2018:NRTYF5QIJJXU5YXHGKDW4R7D5Y

not attested not anchored not stored refs pending

Manipulation of Viscous Fingering in a Radially-Tapered Cell Geometry

Gregoire Bongrand, Peichun Amy Tsai

arxiv:1806.00494 v1 · 2018-06-01 · 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{NRTYF5QIJJXU5YXHGKDW4R7D5Y}

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	2026-05-18T00:11:46.692923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c6782f6084a6f4ee2e732876e47e3ee1ce90ba1a89fee9275902e1a55f7c52f

Aliases

arxiv: 1806.00494 · arxiv_version: 1806.00494v1 · doi: 10.48550/arxiv.1806.00494 · pith_short_12: NRTYF5QIJJXU · pith_short_16: NRTYF5QIJJXU5YXH · pith_short_8: NRTYF5QI

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/NRTYF5QIJJXU5YXHGKDW4R7D5Y \
  | 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: 6c6782f6084a6f4ee2e732876e47e3ee1ce90ba1a89fee9275902e1a55f7c52f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a575a2743be9c949d5107c760ad8da808e0046b1c8b8a544adc0077f7eaa2e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-06-01T18:15:31Z",
    "title_canon_sha256": "d8cc7ecbd960f7c33b82aaca00ff357a6c012764b54445f639bda126dab13e40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00494",
    "kind": "arxiv",
    "version": 1
  }
}