Pith Number

pith:YCXRZMCG

pith:2018:YCXRZMCGLBUDWTYJAVIJ2QMBRJ

not attested not anchored not stored refs pending

Internal observability of the wave equation in tiled domains

Anna Chiara Lai

arxiv:1811.11571 v1 · 2018-11-27 · math.AP · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YCXRZMCGLBUDWTYJAVIJ2QMBRJ}

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	2026-05-17T23:59:40.705830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0af1cb04658683b4f0905509d41818a53e624af86738c7696209afe74561bc9

Aliases

arxiv: 1811.11571 · arxiv_version: 1811.11571v1 · doi: 10.48550/arxiv.1811.11571 · pith_short_12: YCXRZMCGLBUD · pith_short_16: YCXRZMCGLBUDWTYJ · pith_short_8: YCXRZMCG

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/YCXRZMCGLBUDWTYJAVIJ2QMBRJ \
  | 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: c0af1cb04658683b4f0905509d41818a53e624af86738c7696209afe74561bc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c31dae6b9f8b3436d60342e8d36d2671ac4c48057f00a9df10ff0a0f99af83b9",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-11-27T09:22:31Z",
    "title_canon_sha256": "5423e2e337c58433682c36dabb7a98c1ea5d2ac80e59b21357bc8d680b0a6d54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.11571",
    "kind": "arxiv",
    "version": 1
  }
}