Pith Number

pith:PK6FEVM2

pith:2009:PK6FEVM2KQ2YXAXA3PDKS64OZO

not attested not anchored not stored refs pending

Rigorous and heuristic treatment of sensitive singular perturbations arising in elliptic shells

Evariste Sanchez-Palencia (LMM), Nicolas Meunier (MAP5), Yuri Egorov (MIP)

arxiv:0910.2086 v1 · 2009-10-12 · 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{PK6FEVM2KQ2YXAXA3PDKS64OZO}

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	2026-05-18T00:56:58.590670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7abc52559a54358b82e0dbc6a97b8ecb851095b2defcbac2ed756f5f818c6ea8

Aliases

arxiv: 0910.2086 · arxiv_version: 0910.2086v1 · doi: 10.48550/arxiv.0910.2086 · pith_short_12: PK6FEVM2KQ2Y · pith_short_16: PK6FEVM2KQ2YXAXA · pith_short_8: PK6FEVM2

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/PK6FEVM2KQ2YXAXA3PDKS64OZO \
  | 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: 7abc52559a54358b82e0dbc6a97b8ecb851095b2defcbac2ed756f5f818c6ea8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fc1ca7360746a8be276e7297fd6c236fdf6ac3b706a787fc994f354d0f893ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-10-12T05:42:42Z",
    "title_canon_sha256": "8e384027100b2399c090f868abd301ba8c65561bf06b0bb91fd1c1925667936c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2086",
    "kind": "arxiv",
    "version": 1
  }
}