Pith Number

pith:R5DIY626

pith:2018:R5DIY626N22MRGAP7SGU7A6WYQ

not attested not anchored not stored refs pending

Multiscale Methods for Model Order Reduction of Non Linear Multiphase Flow Problems

Gurpreet Singh, Mary F. Wheeler, Wingtat Leung

arxiv:1803.03721 v1 · 2018-03-09 · 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{R5DIY626N22MRGAP7SGU7A6WYQ}

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	2026-05-18T00:21:38.355654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f468c7b5e6eb4c8980ffc8d4f83d6c4291820885cb40023695b1e8aee5511fc

Aliases

arxiv: 1803.03721 · arxiv_version: 1803.03721v1 · doi: 10.48550/arxiv.1803.03721 · pith_short_12: R5DIY626N22M · pith_short_16: R5DIY626N22MRGAP · pith_short_8: R5DIY626

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/R5DIY626N22MRGAP7SGU7A6WYQ \
  | 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: 8f468c7b5e6eb4c8980ffc8d4f83d6c4291820885cb40023695b1e8aee5511fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cd96523ee5e61a7732e8a94ecee98dcc1b04e81c102229ff998292e43fa922d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-09T23:53:18Z",
    "title_canon_sha256": "4f40bdfae9e115c42c84f625babcfbb6f89ec1cf56b17737f64ebe2716e0dc8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.03721",
    "kind": "arxiv",
    "version": 1
  }
}