Pith Number

pith:PIJI6PCR

pith:2017:PIJI6PCRGAAUVNLLG4PIMMGI4H

not attested not anchored not stored refs pending

An H^1-conforming Virtual Element Method for Darcy equations and Brinkman equations

Giuseppe Vacca

arxiv:1701.07680 v2 · 2017-01-26 · 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{PIJI6PCRGAAUVNLLG4PIMMGI4H}

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	2026-05-18T00:51:29.875074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a128f3c5130014ab56b371e8630c8e1c1917654cd4608e98123fbc6f56bacef

Aliases

arxiv: 1701.07680 · arxiv_version: 1701.07680v2 · doi: 10.48550/arxiv.1701.07680 · pith_short_12: PIJI6PCRGAAU · pith_short_16: PIJI6PCRGAAUVNLL · pith_short_8: PIJI6PCR

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/PIJI6PCRGAAUVNLLG4PIMMGI4H \
  | 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: 7a128f3c5130014ab56b371e8630c8e1c1917654cd4608e98123fbc6f56bacef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "785e4985e8a27e314df29798b4291bdb6c16a7bd791f11cf5fa1882a36c6a7a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-01-26T13:03:03Z",
    "title_canon_sha256": "e687c3f95eafb6c104c2bda677d66e44301575798d3985d11ec910ea59b076c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07680",
    "kind": "arxiv",
    "version": 2
  }
}