Pith Number

pith:5MNBZQZK

pith:2021:5MNBZQZKGIA4AVHIFGRVK73YNI

not attested not anchored not stored refs pending

Learning from Natural Noise to Denoise Micro-Doppler Spectrogram

Chong Tang, Karl Woodbridge, Kevin Chetty, Shelly Vishwakarma, Simon Julier, Wenda Li

arxiv:2102.06887 v1 · 2021-02-13 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5MNBZQZKGIA4AVHIFGRVK73YNI}

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	2026-07-05T02:14:59.478422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb1a1cc32a3201c054e829a3557f786a3f23cc0582a83d575107e0432bed4a59

Aliases

arxiv: 2102.06887 · arxiv_version: 2102.06887v1 · doi: 10.48550/arxiv.2102.06887 · pith_short_12: 5MNBZQZKGIA4 · pith_short_16: 5MNBZQZKGIA4AVHI · pith_short_8: 5MNBZQZK

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/5MNBZQZKGIA4AVHIFGRVK73YNI \
  | 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: eb1a1cc32a3201c054e829a3557f786a3f23cc0582a83d575107e0432bed4a59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8aa1c509e0d0dcda23d4062829eed99fe2f5399945bb8132a911337e3ca086c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2021-02-13T09:38:16Z",
    "title_canon_sha256": "b2f9fbb0b2edfdcc664505e40c3f6b68aff27d4aa1853a45b307545e0e671f57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.06887",
    "kind": "arxiv",
    "version": 1
  }
}