Pith Number

pith:H4FV7MTR

pith:2019:H4FV7MTRXWCDO5WHKIAUQE3AZH

not attested not anchored not stored refs pending

Well-posedness of infinite-dimensional non-autonomous passive boundary control systems

Birgit Jacob, Hafida Laasri

arxiv:1901.11348 v1 · 2019-01-31 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4FV7MTRXWCDO5WHKIAUQE3AZH}

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	2026-05-17T23:55:02.120969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f0b5fb271bd843776c75201481360c9f806f4e22f74da5de82a28732ebec5e8

Aliases

arxiv: 1901.11348 · arxiv_version: 1901.11348v1 · doi: 10.48550/arxiv.1901.11348 · pith_short_12: H4FV7MTRXWCD · pith_short_16: H4FV7MTRXWCDO5WH · pith_short_8: H4FV7MTR

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/H4FV7MTRXWCDO5WHKIAUQE3AZH \
  | 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: 3f0b5fb271bd843776c75201481360c9f806f4e22f74da5de82a28732ebec5e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ad6f892e43063371d21ddd6b4a47d83b4a6c59d81b72458b35ebfb8986af9ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2019-01-31T13:32:33Z",
    "title_canon_sha256": "fff130ce40f15fbc6da7a5519fa9ca97c3865586cb39345149dc5ff1ddfc71dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.11348",
    "kind": "arxiv",
    "version": 1
  }
}