Pith Number

pith:JHCVGQXH

pith:2016:JHCVGQXHOJHXEPF4PMIGABNAUY

not attested not anchored not stored refs pending

A posteriori error estimates for space-time IgA approximations to parabolic initial boundary value problems

Sergey Repin, Svetlana Matculevich, Ulrich Langer

arxiv:1612.08998 v3 · 2016-12-28 · 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{JHCVGQXHOJHXEPF4PMIGABNAUY}

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	2026-05-18T00:45:25.784384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49c55342e7724f723cbc7b106005a0a60f5f906fb3cff42687427b132a30e613

Aliases

arxiv: 1612.08998 · arxiv_version: 1612.08998v3 · doi: 10.48550/arxiv.1612.08998 · pith_short_12: JHCVGQXHOJHX · pith_short_16: JHCVGQXHOJHXEPF4 · pith_short_8: JHCVGQXH

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/JHCVGQXHOJHXEPF4PMIGABNAUY \
  | 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: 49c55342e7724f723cbc7b106005a0a60f5f906fb3cff42687427b132a30e613

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afdda1814775b563770a97483d7522a4c36bdfb04a5e9d61f20699dc97d8fb4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-12-28T22:29:49Z",
    "title_canon_sha256": "f2358aa1b083b3598e2cc039d7b60f40123ebdd23c9bd25050d841c6abb91db4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.08998",
    "kind": "arxiv",
    "version": 3
  }
}