Pith Number

pith:QGJCGFKR

pith:2017:QGJCGFKRFW3NGMHMC5A4QPBTM3

not attested not anchored not stored refs pending

EPIRK-W and EPIRK-K time discretization methods

(2) University of California, Adrian Sandu (1), Mahesh Narayanamurthi (1), Mayya Tokman (2) ((1) Virginia Tech, Merced), Paul Tranquilli (1)

arxiv:1701.06528 v2 · 2017-01-23 · cs.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{QGJCGFKRFW3NGMHMC5A4QPBTM3}

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	2026-05-18T00:52:07.758865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81922315512db6d330ec1741c83c3366d72839c7ce7b10de87d122c2d596a781

Aliases

arxiv: 1701.06528 · arxiv_version: 1701.06528v2 · doi: 10.48550/arxiv.1701.06528 · pith_short_12: QGJCGFKRFW3N · pith_short_16: QGJCGFKRFW3NGMHM · pith_short_8: QGJCGFKR

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/QGJCGFKRFW3NGMHMC5A4QPBTM3 \
  | 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: 81922315512db6d330ec1741c83c3366d72839c7ce7b10de87d122c2d596a781

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "765919b14bda6037f705afe0226474f19e6afc65daaacfccb946c90fcac57380",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2017-01-23T17:55:50Z",
    "title_canon_sha256": "49b0b5266dce2ea27b9a8bab1bb2412f1a3f8f78770dea702028ce9be97e2632"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06528",
    "kind": "arxiv",
    "version": 2
  }
}