Pith Number

pith:RBXHZN2V

pith:2018:RBXHZN2V55OMGBJTAQJABRWU5L

not attested not anchored not stored refs pending

A Posteriori Error Estimates for Non-Stationary Non-Linear Convection-Diffusion Equations

R\"udiger Verf\"urth

arxiv:1802.02453 v1 · 2018-02-06 · 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{RBXHZN2V55OMGBJTAQJABRWU5L}

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	2026-05-18T00:24:08.254359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

886e7cb755ef5cc30533041200c6d4eac2c86782750dac1cb66eb36ee5b4040c

Aliases

arxiv: 1802.02453 · arxiv_version: 1802.02453v1 · doi: 10.48550/arxiv.1802.02453 · pith_short_12: RBXHZN2V55OM · pith_short_16: RBXHZN2V55OMGBJT · pith_short_8: RBXHZN2V

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/RBXHZN2V55OMGBJTAQJABRWU5L \
  | 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: 886e7cb755ef5cc30533041200c6d4eac2c86782750dac1cb66eb36ee5b4040c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c985c3541b9b11a54da3f7d9d11d6516648d4388afed3298406503fad1a7a71",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-06T10:17:32Z",
    "title_canon_sha256": "fdf8885af2e003548f2302bc1cbdc5c7c8f868421bdd62572f378f055de48006"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02453",
    "kind": "arxiv",
    "version": 1
  }
}