Pith Number

pith:LPLY7TWE

pith:2015:LPLY7TWEXVRTP7OYA6H6OMYYMT

not attested not anchored not stored refs pending

An algorithm of frequency estimation for multi-channel coprime sampling

Haijian Zhang, Hong Sun, Lei Yu, Shan Huang

arxiv:1509.02618 v2 · 2015-09-09 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LPLY7TWEXVRTP7OYA6H6OMYYMT}

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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	2026-05-18T00:43:43.777918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bd78fcec4bd6337fdd8078fe7331864d5186e6c65f8a069ea28e2418621a65f

Aliases

arxiv: 1509.02618 · arxiv_version: 1509.02618v2 · doi: 10.48550/arxiv.1509.02618 · pith_short_12: LPLY7TWEXVRT · pith_short_16: LPLY7TWEXVRTP7OY · pith_short_8: LPLY7TWE

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/LPLY7TWEXVRTP7OYA6H6OMYYMT \
  | 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: 5bd78fcec4bd6337fdd8078fe7331864d5186e6c65f8a069ea28e2418621a65f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "156d99d5f9cb3683547558e816bf3b6748af119416ddd90e4fb518366fa8b25d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-09-09T03:05:25Z",
    "title_canon_sha256": "49bd3f932955a97602cde7819b0c8f70c7156f0c09317cd79b67962a666d368a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02618",
    "kind": "arxiv",
    "version": 2
  }
}