Pith Number

pith:5I2B4HMU

pith:2018:5I2B4HMU3QFRTIHMQCQOMWKKGS

not attested not anchored not stored refs pending

Convergence Acceleration for Time Dependent Parametric Multifidelity Models

Akil Narayan, Robert M. Kirby, Vahid Keshavarzzadeh

arxiv:1808.03379 v1 · 2018-08-10 · 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{5I2B4HMU3QFRTIHMQCQOMWKKGS}

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	2026-05-18T00:08:25.224134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea341e1d94dc0b19a0ec80a0e6594a34990f12b61bee7682069f88c9bf4390dc

Aliases

arxiv: 1808.03379 · arxiv_version: 1808.03379v1 · doi: 10.48550/arxiv.1808.03379 · pith_short_12: 5I2B4HMU3QFR · pith_short_16: 5I2B4HMU3QFRTIHM · pith_short_8: 5I2B4HMU

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/5I2B4HMU3QFRTIHMQCQOMWKKGS \
  | 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: ea341e1d94dc0b19a0ec80a0e6594a34990f12b61bee7682069f88c9bf4390dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c8e7c28d9abe69398eddc7bb19ba8b0695a00dcd61040408f41e68cf56f9891",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-10T00:46:47Z",
    "title_canon_sha256": "4e7e54380b720ac2a4677287f4323fa996d540cd3b93fcef267310318b329f7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03379",
    "kind": "arxiv",
    "version": 1
  }
}