Pith Number

pith:A4DMTFN7

pith:2012:A4DMTFN74AGE6NQLAYCGBPKOH4

not attested not anchored not stored refs pending

Error estimates for a semidiscrete finite element method for fractional order parabolic equations

Bangti Jin, Raytcho Lazarov, Zhi Zhou

arxiv:1204.3884 v1 · 2012-04-17 · 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{A4DMTFN74AGE6NQLAYCGBPKOH4}

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	2026-05-18T03:57:39.293296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0706c995bfe00c4f360b060460bd4e3f207da42bda0f8c77391126758dcc4dfe

Aliases

arxiv: 1204.3884 · arxiv_version: 1204.3884v1 · doi: 10.48550/arxiv.1204.3884 · pith_short_12: A4DMTFN74AGE · pith_short_16: A4DMTFN74AGE6NQL · pith_short_8: A4DMTFN7

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/A4DMTFN74AGE6NQLAYCGBPKOH4 \
  | 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: 0706c995bfe00c4f360b060460bd4e3f207da42bda0f8c77391126758dcc4dfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff8553464c1c212da9b82ac28bc09c873135aad43d5b2ffa74c2efad0346229d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-04-17T19:42:13Z",
    "title_canon_sha256": "3d716e2856cc7f6707c3c78790d743cf9231a8e4028c7938ef7b09273f0bfe75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3884",
    "kind": "arxiv",
    "version": 1
  }
}