Pith Number

pith:I2PUNJD6

pith:2014:I2PUNJD62VR4LV5TFPBY3ID2JM

not attested not anchored not stored refs pending

Segmental Refinement: A Multigrid Technique for Data Locality

Jed Brown, Mark F. Adams, Matt Knepley, Ravi Samtaney

arxiv:1406.7808 v3 · 2014-06-30 · 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{I2PUNJD62VR4LV5TFPBY3ID2JM}

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	2026-05-18T01:06:23.169642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

469f46a47ed563c5d7b32bc38da07a4b06a5d0679217f94dd7b8775d6b832064

Aliases

arxiv: 1406.7808 · arxiv_version: 1406.7808v3 · doi: 10.48550/arxiv.1406.7808 · pith_short_12: I2PUNJD62VR4 · pith_short_16: I2PUNJD62VR4LV5T · pith_short_8: I2PUNJD6

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/I2PUNJD62VR4LV5TFPBY3ID2JM \
  | 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: 469f46a47ed563c5d7b32bc38da07a4b06a5d0679217f94dd7b8775d6b832064

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ab81b9869baeee1f2e5b1af66790cc2f16b464b434fa9e2e99ff32fc6cd6c18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-06-30T16:44:36Z",
    "title_canon_sha256": "027201e805941c353005d1c81be99ca1b37256b0347c22f021770f45d56956cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7808",
    "kind": "arxiv",
    "version": 3
  }
}