Pith Number

pith:AR7VNWWD

pith:2025:AR7VNWWDPX5BCX34SVVB3RUX7T

not attested not anchored not stored refs pending

Inf-sup stable space-time discretization of the wave equation based on a first-order-in-time variational formulation

Enrico Zampa, Ilaria Perugia, Matteo Ferrari

arxiv:2506.05886 v1 · 2025-06-06 · math.NA · cs.NA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AR7VNWWDPX5BCX34SVVB3RUX7T}

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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.

Cited by

1 paper in Pith

An unconditionally stable space-time isogeometric method for a biharmonic wave equation

Receipt and verification

First computed	2026-07-05T11:17:11.989776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

047f56dac37dfa115f7c956a1dc697fcf20721456ca8ed05770a12f3c0ff09f4

Aliases

arxiv: 2506.05886 · arxiv_version: 2506.05886v1 · doi: 10.48550/arxiv.2506.05886 · pith_short_12: AR7VNWWDPX5B · pith_short_16: AR7VNWWDPX5BCX34 · pith_short_8: AR7VNWWD

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/AR7VNWWDPX5BCX34SVVB3RUX7T \
  | 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: 047f56dac37dfa115f7c956a1dc697fcf20721456ca8ed05770a12f3c0ff09f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ebec704fce8a1b68d195e83441a31e65661f3baa8032fad5131eb0c99fbf81c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-06-06T08:54:25Z",
    "title_canon_sha256": "a909f69cf435f2ecef6111a77128816636f12130208647db7261936404c57bb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.05886",
    "kind": "arxiv",
    "version": 1
  }
}