Pith Number

pith:U46RKALL

pith:2018:U46RKALLF2B2FMTBNDBPSGAHVS

not attested not anchored not stored refs pending

A posteriori error estimation and adaptive strategy for PGD model reduction applied to parametrized linear parabolic problems

Florent Pled (MSME), Ludovic Chamoin (LMT), Pierre-Eric Allier (LMT), Pierre Ladev\`eze (LMT)

arxiv:1801.07422 v1 · 2018-01-23 · math.NA · physics.class-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U46RKALLF2B2FMTBNDBPSGAHVS}

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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	2026-05-18T00:12:43.513877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a73d15016b2e83a2b26168c2f91807acb2b0978864b1a4bc48a8c61a97e31ba2

Aliases

arxiv: 1801.07422 · arxiv_version: 1801.07422v1 · doi: 10.48550/arxiv.1801.07422 · pith_short_12: U46RKALLF2B2 · pith_short_16: U46RKALLF2B2FMTB · pith_short_8: U46RKALL

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/U46RKALLF2B2FMTBNDBPSGAHVS \
  | 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: a73d15016b2e83a2b26168c2f91807acb2b0978864b1a4bc48a8c61a97e31ba2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ac998b0c41b1a753953d6d45b492c83e44e6868a181925d8e31c7375c9623f7",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-23T07:56:00Z",
    "title_canon_sha256": "861881060f1c014d9d9922bead29ca1a6eeb5e62b493a33a3ca392a8865ddf50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07422",
    "kind": "arxiv",
    "version": 1
  }
}