Pith Number

pith:JRLUBVK4

pith:2014:JRLUBVK4J4QSVCRYKSA6X6ZQN6

not attested not anchored not stored refs pending

Verification of functional a posteriori error estimates for obstacle problem in 2D

Jan Valdman, Petr Harasim

arxiv:1403.6619 v1 · 2014-03-26 · 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{JRLUBVK4J4QSVCRYKSA6X6ZQN6}

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	2026-05-18T02:55:28.483421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c5740d55c4f212a8a385481ebfb306faa9399e45ac388dda971f086605825c7

Aliases

arxiv: 1403.6619 · arxiv_version: 1403.6619v1 · doi: 10.48550/arxiv.1403.6619 · pith_short_12: JRLUBVK4J4QS · pith_short_16: JRLUBVK4J4QSVCRY · pith_short_8: JRLUBVK4

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/JRLUBVK4J4QSVCRYKSA6X6ZQN6 \
  | 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: 4c5740d55c4f212a8a385481ebfb306faa9399e45ac388dda971f086605825c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d28f254c7b6dfd9ac29eb78ad88f9d994a44f9238e518670c92a643e02c4b1fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-03-26T10:29:54Z",
    "title_canon_sha256": "3986ecd476f83dcc24d320663915f0a731295d50334e8201e569374e2cc4309e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6619",
    "kind": "arxiv",
    "version": 1
  }
}