Pith Number

pith:WET6S7XA

pith:2015:WET6S7XAMAG5VWSGSX743PCZ4Q

not attested not anchored not stored refs pending

A remark on observability of the wave equation with moving boundary

A. Bchatnia, K. Ammari, K. El Mufti

arxiv:1507.05568 v1 · 2015-07-20 · 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{WET6S7XAMAG5VWSGSX743PCZ4Q}

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	2026-05-18T01:36:36.482430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b127e97ee0600ddada4695ffcdbc59e425737a7915d28f6a19590929dc37c1d9

Aliases

arxiv: 1507.05568 · arxiv_version: 1507.05568v1 · doi: 10.48550/arxiv.1507.05568 · pith_short_12: WET6S7XAMAG5 · pith_short_16: WET6S7XAMAG5VWSG · pith_short_8: WET6S7XA

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/WET6S7XAMAG5VWSGSX743PCZ4Q \
  | 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: b127e97ee0600ddada4695ffcdbc59e425737a7915d28f6a19590929dc37c1d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37d5c34bb757a17bd440b4dba56675cc5a538e57bd3f405af6d89ec628b37422",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-07-20T17:43:44Z",
    "title_canon_sha256": "bcaf7f5ea81e5ab64d04336e5c3e5635adf99cabd4aa81ef7eddc87949260b3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05568",
    "kind": "arxiv",
    "version": 1
  }
}