Pith Number

pith:OGBKMHRN

pith:2014:OGBKMHRNNTC3IEBX5WQCK33DJV

not attested not anchored not stored refs pending

Supercloseness of Orthogonal Projections onto Nearby Finite Element Spaces

Adrian J. Lew, Evan S. Gawlik

arxiv:1408.4104 v1 · 2014-08-18 · 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{OGBKMHRNNTC3IEBX5WQCK33DJV}

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	2026-05-18T02:44:57.205386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7182a61e2d6cc5b41037eda0256f634d763209214d8fc1c667d8ee14c8f54c62

Aliases

arxiv: 1408.4104 · arxiv_version: 1408.4104v1 · doi: 10.48550/arxiv.1408.4104 · pith_short_12: OGBKMHRNNTC3 · pith_short_16: OGBKMHRNNTC3IEBX · pith_short_8: OGBKMHRN

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/OGBKMHRNNTC3IEBX5WQCK33DJV \
  | 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: 7182a61e2d6cc5b41037eda0256f634d763209214d8fc1c667d8ee14c8f54c62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89fcc5f95f6d28e1b4fd21479641272b6372c4fb88d47e7d2ed6307f6d029f3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-08-18T19:42:15Z",
    "title_canon_sha256": "8654cefa5253138fe4f2c60c621b864d6ea6fe97dbb9423c0c9018c1ed39d9f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4104",
    "kind": "arxiv",
    "version": 1
  }
}