Pith Number

pith:NSTJ27DA

pith:2019:NSTJ27DAU4JKGLZNHV5MBJFAN7

not attested not anchored not stored refs pending

Fast Compressed Power Spectrum Estimation: Towards A Practical Solution for Wideband Spectrum Sensing

Hongbin Li, Huiping Duan, Jun Fang, Linxiao Yang

arxiv:1903.09918 v2 · 2019-03-24 · cs.IT · cs.NA · math.IT · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NSTJ27DAU4JKGLZNHV5MBJFAN7}

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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	2026-06-04T20:14:17.149056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ca69d7c60a712a32f2d3d7ac0a4a06fd27aa084c674c0a7cdaa0302b053b316

Aliases

arxiv: 1903.09918 · arxiv_version: 1903.09918v2 · doi: 10.48550/arxiv.1903.09918 · pith_short_12: NSTJ27DAU4JK · pith_short_16: NSTJ27DAU4JKGLZN · pith_short_8: NSTJ27DA

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/NSTJ27DAU4JKGLZNHV5MBJFAN7 \
  | 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: 6ca69d7c60a712a32f2d3d7ac0a4a06fd27aa084c674c0a7cdaa0302b053b316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07a8f7c2d3fd79fa3c421903a7e5635427a0e49a23d6d0ab0b78bad5a8ea5a1a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.IT",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-03-24T04:02:14Z",
    "title_canon_sha256": "319b58f787f9fd8de862db9dcf81d8712d7dde54b93a138e1f0a6c66b005c14c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09918",
    "kind": "arxiv",
    "version": 2
  }
}