Pith Number

pith:K4HG4TSD

pith:2007:K4HG4TSDFVVDHQJH463FWL42XT

not attested not anchored not stored refs pending

A posteriori error estimates in the maximum norm for parabolic problems

Alan Demlow, Charalambos Makridakis, Omar Lakkis

arxiv:0711.3928 v1 · 2007-11-25 · math.NA · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K4HG4TSDFVVDHQJH463FWL42XT}

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	2026-05-18T04:25:03.282674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

570e6e4e432d6a33c127e7b65b2f9abcf65d1d90051ca6fbcbb0f2e91e7e1071

Aliases

arxiv: 0711.3928 · arxiv_version: 0711.3928v1 · doi: 10.48550/arxiv.0711.3928 · pith_short_12: K4HG4TSDFVVD · pith_short_16: K4HG4TSDFVVDHQJH · pith_short_8: K4HG4TSD

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/K4HG4TSDFVVDHQJH463FWL42XT \
  | 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: 570e6e4e432d6a33c127e7b65b2f9abcf65d1d90051ca6fbcbb0f2e91e7e1071

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82e3a827e0d99dbc200986f536a2cdbd963e97c83b3e3913d77042c36a611b50",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2007-11-25T23:11:47Z",
    "title_canon_sha256": "6d16639b43e9d021da3ce8776b79eca43cf944d09d4f593b024a354d16ae5da8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.3928",
    "kind": "arxiv",
    "version": 1
  }
}