Pith Number

pith:TJSAOGWD

pith:2018:TJSAOGWDB4WYSWGXOYFGCNEU6P

not attested not anchored not stored refs pending

Spectroscopic follow-up of double quasar candidates

A. P. Zheleznyak, A. V. Sergeyev, L. J. Goicoechea, V. N. Shalyapin

arxiv:1807.10923 v1 · 2018-07-28 · 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{TJSAOGWDB4WYSWGXOYFGCNEU6P}

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	2026-05-18T00:08:37.591210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a64071ac30f2d8958d7760a613494f3dfe708b3fe48b0776c2f3bb492282c7c

Aliases

arxiv: 1807.10923 · arxiv_version: 1807.10923v1 · doi: 10.48550/arxiv.1807.10923 · pith_short_12: TJSAOGWDB4WY · pith_short_16: TJSAOGWDB4WYSWGX · pith_short_8: TJSAOGWD

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/TJSAOGWDB4WYSWGXOYFGCNEU6P \
  | 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: 9a64071ac30f2d8958d7760a613494f3dfe708b3fe48b0776c2f3bb492282c7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c758efc1f6611f6def3e5487050e79b6894dff083a1bb2faba86ebf2308480d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-28T11:23:59Z",
    "title_canon_sha256": "a63aafef3e42b49e47c5981b62444cce802e94218536d0dd92430832a1673e47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10923",
    "kind": "arxiv",
    "version": 1
  }
}