Pith Number

pith:FOXNITAQ

pith:2019:FOXNITAQSLFSSBLAMQPY2SCMQZ

not attested not anchored not stored refs pending

Carleman estimate for an adjoint of a damped beam equation and an application to null controllability

Sourav Mitra

arxiv:1904.07038 v1 · 2019-04-15 · 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{FOXNITAQSLFSSBLAMQPY2SCMQZ}

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	2026-05-17T23:48:35.429463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2baed44c1092cb290560641f8d484c8678b297dd95bd908f7ef078cb8dcd4aab

Aliases

arxiv: 1904.07038 · arxiv_version: 1904.07038v1 · doi: 10.48550/arxiv.1904.07038 · pith_short_12: FOXNITAQSLFS · pith_short_16: FOXNITAQSLFSSBLA · pith_short_8: FOXNITAQ

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/FOXNITAQSLFSSBLAMQPY2SCMQZ \
  | 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: 2baed44c1092cb290560641f8d484c8678b297dd95bd908f7ef078cb8dcd4aab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12894c32935035997f6f88a8921cc27caf536b655d8aa292526351aa3cba6421",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-04-15T13:39:36Z",
    "title_canon_sha256": "6e3521ec40356b065e70ca88a28557847e78127332957918bc7f6e27e4b9e933"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07038",
    "kind": "arxiv",
    "version": 1
  }
}