Pith Number

pith:W7PF5XH2

pith:2018:W7PF5XH2NFJGFNFGPYO6IAJMXJ

not attested not anchored not stored refs pending

Fast divergence-conforming reduced basis methods for steady Navier-Stokes flow

Adil Rasheed, Eivind Fonn, Harald Van Brummelen, Trond Kvamsdal

arxiv:1807.11866 v1 · 2018-07-31 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W7PF5XH2NFJGFNFGPYO6IAJMXJ}

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	2026-05-17T23:55:20.221552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7de5edcfa695262b4a67e1de4012cba78ef3641e79dbf848ef2f57411fdaee8

Aliases

arxiv: 1807.11866 · arxiv_version: 1807.11866v1 · doi: 10.48550/arxiv.1807.11866 · pith_short_12: W7PF5XH2NFJG · pith_short_16: W7PF5XH2NFJGFNFG · pith_short_8: W7PF5XH2

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/W7PF5XH2NFJGFNFGPYO6IAJMXJ \
  | 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: b7de5edcfa695262b4a67e1de4012cba78ef3641e79dbf848ef2f57411fdaee8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3da2b2ee7522f8469d536d080f83c44bfc4e6faba707ad4d730ce28aea537253",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-31T15:29:09Z",
    "title_canon_sha256": "af84f261a4269f4eefd914d37e48967d5263d4270d51a9809c660c6b5147f5a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11866",
    "kind": "arxiv",
    "version": 1
  }
}