Pith Number

pith:I4AORJIV

pith:2017:I4AORJIVKVESISHAIRZHXW7QXA

not attested not anchored not stored refs pending

Active subspaces of airfoil shape parameterizations

Paul G. Constantine, Zachary J. Grey

arxiv:1702.02909 v1 · 2017-02-09 · 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{I4AORJIVKVESISHAIRZHXW7QXA}

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	2026-05-18T00:51:02.067859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4700e8a51555492448e044727bdbf0b82b6e8db150932d85a8cd201436682fa1

Aliases

arxiv: 1702.02909 · arxiv_version: 1702.02909v1 · doi: 10.48550/arxiv.1702.02909 · pith_short_12: I4AORJIVKVES · pith_short_16: I4AORJIVKVESISHA · pith_short_8: I4AORJIV

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/I4AORJIVKVESISHAIRZHXW7QXA \
  | 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: 4700e8a51555492448e044727bdbf0b82b6e8db150932d85a8cd201436682fa1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62002a516ce9a612ecf17700d43a45abe8a45d8aa227864e58b27530c34a7b55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-02-09T17:34:54Z",
    "title_canon_sha256": "d1f3fd259d7aee8b582569f5af9e90cd59f99000fa2b3fd4eb33430b5a570f02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02909",
    "kind": "arxiv",
    "version": 1
  }
}