Pith Number

pith:R72IAWKL

pith:2018:R72IAWKLKSV54HYQYVTPQMO7NP

not attested not anchored not stored refs pending

Multilevel convergence analysis of multigrid-reduction-in-time

Andreas Hessenthaler, Ben S. Southworth, David Nordsletten, Jacob B. Schroder, Oliver R\"ohrle, Robert D. Falgout

arxiv:1812.11508 v2 · 2018-12-30 · 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{R72IAWKLKSV54HYQYVTPQMO7NP}

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	2026-05-17T23:44:21.925334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ff480594b54abde1f10c566f831df6bde12dbb3159fa232311daa07794c6b79

Aliases

arxiv: 1812.11508 · arxiv_version: 1812.11508v2 · doi: 10.48550/arxiv.1812.11508 · pith_short_12: R72IAWKLKSV5 · pith_short_16: R72IAWKLKSV54HYQ · pith_short_8: R72IAWKL

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/R72IAWKLKSV54HYQYVTPQMO7NP \
  | 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: 8ff480594b54abde1f10c566f831df6bde12dbb3159fa232311daa07794c6b79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b56b19b9864ca1c9fdd1b04a92641dae360cb3349cb60c82eeefc294543c326a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-12-30T10:50:50Z",
    "title_canon_sha256": "9e0fa84b1ff30706053ae4ae32818ce8daedd50551aefb94b4af08c30c28f01a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11508",
    "kind": "arxiv",
    "version": 2
  }
}