Pith Number

pith:FCMJLHD5

pith:2017:FCMJLHD5CTPZQ5WVXBHTWLJXYR

not attested not anchored not stored refs pending

Exponential instability in the fractional Calder\'on problem

Angkana R\"uland, Mikko Salo

arxiv:1711.04799 v1 · 2017-11-13 · 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{FCMJLHD5CTPZQ5WVXBHTWLJXYR}

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	2026-05-18T00:21:09.731367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2898959c7d14df9876d5b84f3b2d37c473202c31a14c62d24ccc5a903f003a1f

Aliases

arxiv: 1711.04799 · arxiv_version: 1711.04799v1 · doi: 10.48550/arxiv.1711.04799 · pith_short_12: FCMJLHD5CTPZ · pith_short_16: FCMJLHD5CTPZQ5WV · pith_short_8: FCMJLHD5

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/FCMJLHD5CTPZQ5WVXBHTWLJXYR \
  | 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: 2898959c7d14df9876d5b84f3b2d37c473202c31a14c62d24ccc5a903f003a1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8587891173b995bf6b75a17c5c34604ab132dc26465a27d3b6cf18fe5b9d788",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-11-13T19:09:24Z",
    "title_canon_sha256": "e64174c535a85ac9072125a2ab0d03206c8b965830ffae885bff89706cff8e46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.04799",
    "kind": "arxiv",
    "version": 1
  }
}