Pith Number

pith:BMICEBJJ

pith:2021:BMICEBJJYFKYSHD3LOWRM2MW4Z

not attested not anchored not stored refs pending

Robust approximation of generalized Biot-Brinkman problems

J. Kraus, K.A. Mardal, M.E. Rognes, M. Kuchta, M. Lymbery, Q. Hong

arxiv:2112.13618 v1 · 2021-12-27 · math.NA · cs.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{BMICEBJJYFKYSHD3LOWRM2MW4Z}

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	2026-07-05T03:43:55.396102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b10220529c155891c7b5bad166996e67a70ceb1b181c3af57415be34af1121b

Aliases

arxiv: 2112.13618 · arxiv_version: 2112.13618v1 · doi: 10.48550/arxiv.2112.13618 · pith_short_12: BMICEBJJYFKY · pith_short_16: BMICEBJJYFKYSHD3 · pith_short_8: BMICEBJJ

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/BMICEBJJYFKYSHD3LOWRM2MW4Z \
  | 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: 0b10220529c155891c7b5bad166996e67a70ceb1b181c3af57415be34af1121b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43be0410aa1b981bb031cc61af887fe600d4b78594d47e90996f6d614c6e7395",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-12-27T11:41:07Z",
    "title_canon_sha256": "d4d7ead8251aaf21fde062b70b2a00fc589d90d52a1e6673e197929658124b4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.13618",
    "kind": "arxiv",
    "version": 1
  }
}