Pith Number

pith:EOGU5AMT

pith:2019:EOGU5AMTXB3QOB325FHRP4GZRM

not attested not anchored not stored refs pending

An efficient methodology to estimate the parameters of a two-dimensional chirp signal model

Amit Mitra, Debasis Kundu, Rhythm Grover

arxiv:1902.04765 v1 · 2019-02-13 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EOGU5AMTXB3QOB325FHRP4GZRM}

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	2026-05-17T23:54:06.030263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

238d4e8193b87707077ae94f17f0d98b165243f9618f9754ebea1d3a73638ff6

Aliases

arxiv: 1902.04765 · arxiv_version: 1902.04765v1 · doi: 10.48550/arxiv.1902.04765 · pith_short_12: EOGU5AMTXB3Q · pith_short_16: EOGU5AMTXB3QOB32 · pith_short_8: EOGU5AMT

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/EOGU5AMTXB3QOB325FHRP4GZRM \
  | 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: 238d4e8193b87707077ae94f17f0d98b165243f9618f9754ebea1d3a73638ff6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b32715b7d366ec80dd75e276a5abb59327464219d41d87d4798e43cf768aa2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-02-13T06:36:24Z",
    "title_canon_sha256": "8f74ce5ccbe514df49c1fbc3d03c450c53059422796377c6d5717090081d8d52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04765",
    "kind": "arxiv",
    "version": 1
  }
}