Pith Number

pith:JUN27ET5

pith:2014:JUN27ET57LDPZ2FFKKHFRC6SOE

not attested not anchored not stored refs pending

Inexact spectral deferred corrections

Daniel Ruprecht, Matthew Emmett, Michael Minion, Robert Speck, Rolf Krause

arxiv:1401.7824 v2 · 2014-01-30 · 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{JUN27ET57LDPZ2FFKKHFRC6SOE}

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	2026-05-18T01:18:57.685111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d1baf927dfac6fce8a5528e588bd271276978d1f2f679d28b20d66ff8adffa5

Aliases

arxiv: 1401.7824 · arxiv_version: 1401.7824v2 · doi: 10.48550/arxiv.1401.7824 · pith_short_12: JUN27ET57LDP · pith_short_16: JUN27ET57LDPZ2FF · pith_short_8: JUN27ET5

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/JUN27ET57LDPZ2FFKKHFRC6SOE \
  | 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: 4d1baf927dfac6fce8a5528e588bd271276978d1f2f679d28b20d66ff8adffa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef079b74864302427ae3a3318d07e3b08d1d21c5a892b2ff695acdc6ef9df526",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-01-30T12:33:48Z",
    "title_canon_sha256": "dd7c593b81ce0d0d57f37ec2dbca8dc0a18c98ca9aa50deb646aa9053791e2af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7824",
    "kind": "arxiv",
    "version": 2
  }
}