Pith Number

pith:I6BH3ZLW

pith:2020:I6BH3ZLWTWBT4AWFE5YC52NGC4

not attested not anchored not stored refs pending

The physical properties of $Fermi$-4LAC flat spectrum radio quasars

Can Tan, Lei-Ming Du, Rui Xue, Shao-Qiang Xi, Ze-Rui Wang, Zhao-Hua Xie

arxiv:2005.09553 v1 · 2020-05-19 · 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{I6BH3ZLWTWBT4AWFE5YC52NGC4}

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	2026-07-05T01:10:38.749570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47827de5769d833e02c527702ee9a6173d3507a4da680c6c93e28931733ca35e

Aliases

arxiv: 2005.09553 · arxiv_version: 2005.09553v1 · doi: 10.48550/arxiv.2005.09553 · pith_short_12: I6BH3ZLWTWBT · pith_short_16: I6BH3ZLWTWBT4AWF · pith_short_8: I6BH3ZLW

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/I6BH3ZLWTWBT4AWFE5YC52NGC4 \
  | 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: 47827de5769d833e02c527702ee9a6173d3507a4da680c6c93e28931733ca35e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0a29342a7c12eedc35bc3f7be39f25b5fd4c822f549027449b855dd081a5942",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-05-19T16:14:56Z",
    "title_canon_sha256": "74d7d68ef7cfe65e294fa2bfa84598100f71a93b1cca68afdf07ddbb5bb3c8f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.09553",
    "kind": "arxiv",
    "version": 1
  }
}