Pith Number

pith:72STCM5Z

pith:2015:72STCM5ZVQAYLHLLJ7YXKSDQZQ

not attested not anchored not stored refs pending

Multiscale techniques for parabolic equations

Anna Persson, Axel M{\aa}lqvist

arxiv:1504.08140 v1 · 2015-04-30 · 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{72STCM5ZVQAYLHLLJ7YXKSDQZQ}

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	2026-05-18T02:17:23.202957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fea53133b9ac01859d6b4ff1754870cc24f7b2b0819aa64e1303031fee2ad7d0

Aliases

arxiv: 1504.08140 · arxiv_version: 1504.08140v1 · doi: 10.48550/arxiv.1504.08140 · pith_short_12: 72STCM5ZVQAY · pith_short_16: 72STCM5ZVQAYLHLL · pith_short_8: 72STCM5Z

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/72STCM5ZVQAYLHLLJ7YXKSDQZQ \
  | 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: fea53133b9ac01859d6b4ff1754870cc24f7b2b0819aa64e1303031fee2ad7d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e265f2826d72f6416b67663c8113ff3cbad735564cfd5462bc94d9dfb3d47de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-04-30T09:32:00Z",
    "title_canon_sha256": "a80565d132342881c475ac0435c120738b342438d53823d11a666e19362d6de6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08140",
    "kind": "arxiv",
    "version": 1
  }
}