Pith Number

pith:27NC6K4A

pith:2021:27NC6K4AY5NVJO5JF66BCBMOKI

not attested not anchored not stored refs pending

Detection of a possible high-confidence radio quasi-periodic oscillation in the BL Lac PKS J2134-0153

Ding-Rong Xiong, Fu-Ting Li, Guowei Ren, Hao-Jing Zhang, Hui Li, Nan Ding, Rui Xue, Xiong Zhang

arxiv:2108.04676 v1 · 2021-08-10 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{27NC6K4AY5NVJO5JF66BCBMOKI}

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	2026-07-05T04:52:25.517577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7da2f2b80c75b54bba92fbc11058e520d49df6742d6cf550b72183466261c7d

Aliases

arxiv: 2108.04676 · arxiv_version: 2108.04676v1 · doi: 10.48550/arxiv.2108.04676 · pith_short_12: 27NC6K4AY5NV · pith_short_16: 27NC6K4AY5NVJO5J · pith_short_8: 27NC6K4A

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/27NC6K4AY5NVJO5JF66BCBMOKI \
  | 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: d7da2f2b80c75b54bba92fbc11058e520d49df6742d6cf550b72183466261c7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f06e894169304f413b94fdc6a79da6e2aa8bead31ce1ef6a34853ecc717f955b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-08-10T13:32:40Z",
    "title_canon_sha256": "5f5efcab3d8aefd7eeb8dea8f2c43771eed7d29f17c6e73713bf89e12c1ed46b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.04676",
    "kind": "arxiv",
    "version": 1
  }
}