Pith Number

pith:Y7QKNOT6

pith:2015:Y7QKNOT6A5IXW5BDP3I2Z7ZMJF

not attested not anchored not stored refs pending

A Time-Periodic Bifurcation Theorem and its Application to Navier-Stokes Flow Past an Obstacle

Giovanni P. Galdi

arxiv:1507.07903 v2 · 2015-07-28 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7QKNOT6A5IXW5BDP3I2Z7ZMJF}

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	2026-05-18T01:35:53.998269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7e0a6ba7e07517b74237ed1acff2c497b764affb17c9fd12235ce950adb6de3

Aliases

arxiv: 1507.07903 · arxiv_version: 1507.07903v2 · doi: 10.48550/arxiv.1507.07903 · pith_short_12: Y7QKNOT6A5IX · pith_short_16: Y7QKNOT6A5IXW5BD · pith_short_8: Y7QKNOT6

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/Y7QKNOT6A5IXW5BDP3I2Z7ZMJF \
  | 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: c7e0a6ba7e07517b74237ed1acff2c497b764affb17c9fd12235ce950adb6de3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bef3c4f314877742974c55e092f05a7703a2d98bf4e2e115ad3c256cc2dbd0e",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-07-28T19:13:21Z",
    "title_canon_sha256": "f31ecb75bd806be8b86ce5ec4e7b4286982641e140ca3709f97433f5b31b5579"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07903",
    "kind": "arxiv",
    "version": 2
  }
}