Pith Number

pith:ENZSD7YR

pith:2012:ENZSD7YR5G4DLOMKLHTHOGRB5W

not attested not anchored not stored refs pending

An a posteriori error estimator for discontinuous Galerkin methods for non-stationary convection-diffusion problems

Andrea Cangiani, Emmanuil H.Georgoulis, Stephen Metcalfe

arxiv:1211.3632 v1 · 2012-11-15 · 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{ENZSD7YR5G4DLOMKLHTHOGRB5W}

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	2026-05-18T03:40:39.239260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

237321ff11e9b835b98a59e6771a21edaf3314da782f52705d971c6f7dc598bf

Aliases

arxiv: 1211.3632 · arxiv_version: 1211.3632v1 · doi: 10.48550/arxiv.1211.3632 · pith_short_12: ENZSD7YR5G4D · pith_short_16: ENZSD7YR5G4DLOMK · pith_short_8: ENZSD7YR

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/ENZSD7YR5G4DLOMKLHTHOGRB5W \
  | 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: 237321ff11e9b835b98a59e6771a21edaf3314da782f52705d971c6f7dc598bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95896fd43a040b9b6aaf1df624e56ac53b9ecc667e0eb94cacbbbe520422a6d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-11-15T15:54:18Z",
    "title_canon_sha256": "4496307fa335b86fefa04f1c4dbf0ff144b320a20d12a658ce7b7062f36e3fce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3632",
    "kind": "arxiv",
    "version": 1
  }
}