Pith Number

pith:4Z2BD3OQ

pith:2014:4Z2BD3OQCSL7TXWWJWJWV6FTBL

not attested not anchored not stored refs pending

Compressible flow in front of an axisymmetric blunt object

Uri Keshet, Yossi Naor

arxiv:1412.8406 v2 · 2014-12-29 · astro-ph.IM · 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{4Z2BD3OQCSL7TXWWJWJWV6FTBL}

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	2026-05-18T00:57:42.795217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e67411edd01497f9ded64d936af8b30af31622e9cf9e92bcdafa8cd27ba609d8

Aliases

arxiv: 1412.8406 · arxiv_version: 1412.8406v2 · doi: 10.48550/arxiv.1412.8406 · pith_short_12: 4Z2BD3OQCSL7 · pith_short_16: 4Z2BD3OQCSL7TXWW · pith_short_8: 4Z2BD3OQ

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/4Z2BD3OQCSL7TXWWJWJWV6FTBL \
  | 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: e67411edd01497f9ded64d936af8b30af31622e9cf9e92bcdafa8cd27ba609d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87e503e23b77c333dfb8b3b1006540bf79ef2e6ce90d944d6f4deadcfc0142a9",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-12-29T17:54:27Z",
    "title_canon_sha256": "079560800796b4052d58949a427d4a04a2f80aaf877faed731ff3797d6e2f795"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.8406",
    "kind": "arxiv",
    "version": 2
  }
}