Pith Number

pith:STV5RHJS

pith:2012:STV5RHJS2FFBHUG2OUORWKREV2

not attested not anchored not stored refs pending

Stable determination of surface impedance on a rough obstacle by far field data

Eva Sincich, Giovanni Alessandrini, Sergio Vessella

arxiv:1207.5421 v1 · 2012-07-23 · 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{STV5RHJS2FFBHUG2OUORWKREV2}

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	2026-05-18T02:54:14.476918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94ebd89d32d14a13d0da751d1b2a24aea01080f2aaa64a865d8803ba169b848f

Aliases

arxiv: 1207.5421 · arxiv_version: 1207.5421v1 · doi: 10.48550/arxiv.1207.5421 · pith_short_12: STV5RHJS2FFB · pith_short_16: STV5RHJS2FFBHUG2 · pith_short_8: STV5RHJS

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/STV5RHJS2FFBHUG2OUORWKREV2 \
  | 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: 94ebd89d32d14a13d0da751d1b2a24aea01080f2aaa64a865d8803ba169b848f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb59d33ade1c98f34f710d28d0523913bcce4c2ff20bbf2b5e01ce73d217264d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-07-23T15:05:30Z",
    "title_canon_sha256": "1df21968c0b779e982806cbe0ddf28340e1cb84ccceda29687e38df35c652079"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5421",
    "kind": "arxiv",
    "version": 1
  }
}