Pith Number

pith:IB3U6YSO

pith:2016:IB3U6YSO2YL4BEOK3GOOBFQYXK

not attested not anchored not stored refs pending

Robust flux error estimation of an unfitted Nitsche method for high-contrast interface problems

Erik Burman, Johnny Guzman, Manuel A. Sanchez, Marcus Sarkis

arxiv:1602.00603 v2 · 2016-02-01 · 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{IB3U6YSO2YL4BEOK3GOOBFQYXK}

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	2026-05-18T01:02:13.236605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40774f624ed617c091cad99ce09618ba9cdfc40f6db50dc5b247456e5de05880

Aliases

arxiv: 1602.00603 · arxiv_version: 1602.00603v2 · doi: 10.48550/arxiv.1602.00603 · pith_short_12: IB3U6YSO2YL4 · pith_short_16: IB3U6YSO2YL4BEOK · pith_short_8: IB3U6YSO

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/IB3U6YSO2YL4BEOK3GOOBFQYXK \
  | 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: 40774f624ed617c091cad99ce09618ba9cdfc40f6db50dc5b247456e5de05880

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aeaf11c7de414f103bb01e2136a85b1705ab53f4f964d986e6b198f1d1c0e93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-02-01T17:30:46Z",
    "title_canon_sha256": "4b1a65ed968f8488962f39aecd1b1cd40b0b527683bb5c650bf651d76ebd77c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.00603",
    "kind": "arxiv",
    "version": 2
  }
}