Pith Number

pith:VD74D3OQ

pith:2018:VD74D3OQQUWQBQAM7NV44YNVZX

not attested not anchored not stored refs pending

Direct numerical simulation of supersonic pipe flow at moderate Reynolds number

Davide Modesti, Sergio Pirozzoli

arxiv:1810.03747 v1 · 2018-10-08 · 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{VD74D3OQQUWQBQAM7NV44YNVZX}

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	2026-05-18T00:03:44.596383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8ffc1edd0852d00c00cfb6bce61b5cdf62e79d10fae17f5ccfc125b95085b79

Aliases

arxiv: 1810.03747 · arxiv_version: 1810.03747v1 · doi: 10.48550/arxiv.1810.03747 · pith_short_12: VD74D3OQQUWQ · pith_short_16: VD74D3OQQUWQBQAM · pith_short_8: VD74D3OQ

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/VD74D3OQQUWQBQAM7NV44YNVZX \
  | 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: a8ffc1edd0852d00c00cfb6bce61b5cdf62e79d10fae17f5ccfc125b95085b79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b2b0e76b8ee90a02ba7989d411a63b65d3818f60ebb57e9e28f4460fb81f8d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-10-08T23:40:46Z",
    "title_canon_sha256": "22b96b19f9b05d741532611c730f356fde1448bff2e09d9b4afd1f834403c241"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.03747",
    "kind": "arxiv",
    "version": 1
  }
}