Pith Number

pith:AIK6F6RW

pith:2026:AIK6F6RWAJWGG56KUVLNCMW4DL

not attested not anchored not stored refs pending

Skin friction prediction for attached flows based on two-dimensional inviscid solutions

Mingkun Xia, Shule Zhao, Weiwei Zhang

arxiv:2607.07246 v1 · 2026-07-08 · 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{AIK6F6RWAJWGG56KUVLNCMW4DL}

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	2026-07-09T01:20:18.726332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0215e2fa36026c6377caa556d132dc1ae65931f95f86bdf1d5b77386d5e84edc

Aliases

arxiv: 2607.07246 · arxiv_version: 2607.07246v1 · doi: 10.48550/arxiv.2607.07246 · pith_short_12: AIK6F6RWAJWG · pith_short_16: AIK6F6RWAJWGG56K · pith_short_8: AIK6F6RW

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/AIK6F6RWAJWGG56KUVLNCMW4DL \
  | 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: 0215e2fa36026c6377caa556d132dc1ae65931f95f86bdf1d5b77386d5e84edc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c7ee9793c4976ab3ecd4dd3ce01327c8f80d73e9aee7c1a7749a6129e3964f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-07-08T10:27:06Z",
    "title_canon_sha256": "ec3048143f17601dd013f6578d652973972548035df507fb32b88a3b3f02c86b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.07246",
    "kind": "arxiv",
    "version": 1
  }
}