Pith Number

pith:F4E27U2U

pith:2021:F4E27U2UGFKBVZ77GVSNI42666

not attested not anchored not stored refs pending

Hypersonic curved compression ramp flows with bistable states

Gang Wang, Ming-Zhi Tang, Wen-Feng Zhou, Yan-Chao Hu, Yan-Guang Yang, Zhu-xuan Xie

arxiv:2109.00423 v1 · 2021-09-01 · 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{F4E27U2UGFKBVZ77GVSNI42666}

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	2026-07-05T03:10:46.395200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f09afd35431541ae7ff3564d4735ef7a52f9848bcf8da3c8b9c74fd656d677e

Aliases

arxiv: 2109.00423 · arxiv_version: 2109.00423v1 · doi: 10.48550/arxiv.2109.00423 · pith_short_12: F4E27U2UGFKB · pith_short_16: F4E27U2UGFKBVZ77 · pith_short_8: F4E27U2U

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/F4E27U2UGFKBVZ77GVSNI42666 \
  | 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: 2f09afd35431541ae7ff3564d4735ef7a52f9848bcf8da3c8b9c74fd656d677e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e85e30a378fad27af839d6327c57cdf21d45f372b9f06992722146ded6b1f05a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2021-09-01T15:10:03Z",
    "title_canon_sha256": "1d08d9d68b5d224e15ede1e9b2b6c25e762f8c01d80e9c8ffb1c757a62d91a87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00423",
    "kind": "arxiv",
    "version": 1
  }
}