Pith Number

pith:VKDMUEAY

pith:2020:VKDMUEAYLCB2L2H3FVUTF7K7IE

not attested not anchored not stored refs pending

Backward error analysis for variational discretisations of partial differential equations

Christian Offen, Robert I McLachlan

arxiv:2006.14172 v3 · 2020-06-25 · math.NA · cs.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{VKDMUEAYLCB2L2H3FVUTF7K7IE}

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	2026-07-05T04:41:50.410942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa86ca10185883a5e8fb2d6932fd5f412db7319664286b040e3e948c88021060

Aliases

arxiv: 2006.14172 · arxiv_version: 2006.14172v3 · doi: 10.48550/arxiv.2006.14172 · pith_short_12: VKDMUEAYLCB2 · pith_short_16: VKDMUEAYLCB2L2H3 · pith_short_8: VKDMUEAY

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/VKDMUEAYLCB2L2H3FVUTF7K7IE \
  | 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: aa86ca10185883a5e8fb2d6932fd5f412db7319664286b040e3e948c88021060

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dcf4d0f1c1c86386f33da9af29c4493ce1781305eac852219afeeb7f5b9eb74",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-06-25T04:48:54Z",
    "title_canon_sha256": "71e94692734e675fc0c563e16cdfe69c2e25932f3376867435657f8a8fa5ed45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.14172",
    "kind": "arxiv",
    "version": 3
  }
}