Pith Number

pith:J3RQCP7A

pith:2018:J3RQCP7AI4ZJGI4MVQJRHARL6G

not attested not anchored not stored refs pending

Simple and robust equilibrated flux a posteriori estimates for singularly perturbed reaction-diffusion problems

Iain Smears, Martin Vohral\'ik

arxiv:1812.06678 v1 · 2018-12-17 · 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{J3RQCP7AI4ZJGI4MVQJRHARL6G}

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	2026-06-04T20:13:48.544796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ee3013fe0473293238cac1313822bf19df2ae2ab24a75fa3575439c6405e83f

Aliases

arxiv: 1812.06678 · arxiv_version: 1812.06678v1 · doi: 10.48550/arxiv.1812.06678 · pith_short_12: J3RQCP7AI4ZJ · pith_short_16: J3RQCP7AI4ZJGI4M · pith_short_8: J3RQCP7A

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/J3RQCP7AI4ZJGI4MVQJRHARL6G \
  | 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: 4ee3013fe0473293238cac1313822bf19df2ae2ab24a75fa3575439c6405e83f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8102ebb55f73f3d0b0fc19d90d34f1fb09b16635df71996c294dc42c5b0f99c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-12-17T10:27:09Z",
    "title_canon_sha256": "505143ca78745dfaf6b74386cb2504fa8d4ca05a0569108be2e82f5daac80089"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06678",
    "kind": "arxiv",
    "version": 1
  }
}