Pith Number

pith:QHC2YKLN

pith:2020:QHC2YKLNEIVFHIA32BXVXXWPMP

not attested not anchored not stored refs pending

Flux density variability of 286 radio pulsars from a decade of monitoring

C. Sobey, G. Hobbs, H. Kumamoto, K. Takahashi, M. Kerr, P. Weltevrede, R. M. Shannon, R. N. Manchester, S. Dai, S. Johnston

arxiv:2012.08119 v1 · 2020-12-15 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHC2YKLNEIVFHIA32BXVXXWPMP}

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	2026-07-05T02:04:49.241146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81c5ac296d222a53a01bd06f5bdecf63da2b69e7755dd81923ec47ae6ac3c158

Aliases

arxiv: 2012.08119 · arxiv_version: 2012.08119v1 · doi: 10.48550/arxiv.2012.08119 · pith_short_12: QHC2YKLNEIVF · pith_short_16: QHC2YKLNEIVFHIA3 · pith_short_8: QHC2YKLN

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/QHC2YKLNEIVFHIA32BXVXXWPMP \
  | 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: 81c5ac296d222a53a01bd06f5bdecf63da2b69e7755dd81923ec47ae6ac3c158

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77c791c831d231d7dd845b6cc3f314cfd27f96a57dc0c44a87155cab851861cc",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-12-15T06:41:58Z",
    "title_canon_sha256": "eb01ebb55f74bf3fb428b3c9d0d24f0bf1c0fb221a4130952f4aaa02ac18ecb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.08119",
    "kind": "arxiv",
    "version": 1
  }
}