Pith Number

pith:N4ZDVP3O

pith:2014:N4ZDVP3OGPWXLYCQS2SQHEX75G

not attested not anchored not stored refs pending

A priori error estimates for a time-dependent boundary element method for the acoustic wave equation in a half-space

Ernst P. Stephan, Heiko Gimperlein, Zouhair Nezhi

arxiv:1406.7566 v2 · 2014-06-29 · math.NA · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N4ZDVP3OGPWXLYCQS2SQHEX75G}

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	2026-05-18T00:17:20.167351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f323abf6e33ed75e05096a50392ffe988be09c632617de55382ef7c91bf9f3a

Aliases

arxiv: 1406.7566 · arxiv_version: 1406.7566v2 · doi: 10.48550/arxiv.1406.7566 · pith_short_12: N4ZDVP3OGPWX · pith_short_16: N4ZDVP3OGPWXLYCQ · pith_short_8: N4ZDVP3O

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/N4ZDVP3OGPWXLYCQS2SQHEX75G \
  | 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: 6f323abf6e33ed75e05096a50392ffe988be09c632617de55382ef7c91bf9f3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b2f282a3ebb09c90312ca9914188f673cdab1fbab5a1797aa711568fe33f5f8",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-06-29T21:53:29Z",
    "title_canon_sha256": "6f9392b49db933e941ac3b00083ffd33116bcc58e2f9a2ae703c61a3492b7379"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7566",
    "kind": "arxiv",
    "version": 2
  }
}