Pith Number

pith:DKXIIDGX

pith:2021:DKXIIDGX7T2ASDCKLZPY4XPQR6

not attested not anchored not stored refs pending

Very Large Array imaging rules out precessing radio jets in three DES$-$SDSS-selected candidate periodic quasars

Hengxiao Guo, Wei-Ting Liao, Xin Liu, Yu-Ching Chen

arxiv:2105.15194 v2 · 2021-05-31 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DKXIIDGX7T2ASDCKLZPY4XPQR6}

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	2026-07-05T03:53:47.878634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1aae840cd7fcf4090c4a5e5f8e5df08f9a7fb35d2be25959953177d94a5a3ca5

Aliases

arxiv: 2105.15194 · arxiv_version: 2105.15194v2 · doi: 10.48550/arxiv.2105.15194 · pith_short_12: DKXIIDGX7T2A · pith_short_16: DKXIIDGX7T2ASDCK · pith_short_8: DKXIIDGX

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/DKXIIDGX7T2ASDCKLZPY4XPQR6 \
  | 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: 1aae840cd7fcf4090c4a5e5f8e5df08f9a7fb35d2be25959953177d94a5a3ca5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a3449383a3f43c6cd4a889f7375810fa1423555f585b6821ab55cabbe9490e6",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-05-31T17:55:17Z",
    "title_canon_sha256": "ce13cf560759661c65f8ae078b3bc224c650432a20cbb54669e009eff14f9dcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.15194",
    "kind": "arxiv",
    "version": 2
  }
}