Pith Number

pith:GS6Z54K6

pith:2010:GS6Z54K6YMSOKBCOZM56RIRPEY

not attested not anchored not stored refs pending

Spectral Nevanlinna-Pick and Carath\'eodory-Fej\'er problems

Nikolai Nikolov, Pascal J. Thomas, Peter Pflug

arxiv:1002.1706 v2 · 2010-02-08 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GS6Z54K6YMSOKBCOZM56RIRPEY}

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	2026-05-18T03:46:45.792022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34bd9ef15ec324e5044ecb3be8a22f262e18f80f776833d6426a4dea9a715d08

Aliases

arxiv: 1002.1706 · arxiv_version: 1002.1706v2 · doi: 10.48550/arxiv.1002.1706 · pith_short_12: GS6Z54K6YMSO · pith_short_16: GS6Z54K6YMSOKBCO · pith_short_8: GS6Z54K6

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/GS6Z54K6YMSOKBCOZM56RIRPEY \
  | 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: 34bd9ef15ec324e5044ecb3be8a22f262e18f80f776833d6426a4dea9a715d08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "842ba7ca61f1a2e4dc58bb81bdcca2926323285b6454704881379db517722845",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2010-02-08T20:21:13Z",
    "title_canon_sha256": "e398c975f5d1cc77b23f763c2eb902d041a7843132abad5233b78314845fb274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1706",
    "kind": "arxiv",
    "version": 2
  }
}