Pith Number

pith:FDR2TLMH

pith:2018:FDR2TLMHNCVQTGAZAJUBEG5VMJ

not attested not anchored not stored refs pending

Spectroscopic Observations of the Outflowing Wind in the Lensed Quasar SDSS J1001+5027

Daisuke Itoh, Jane C. Charlton, Masamune Oguri, Michael Eracleous, Naohisa Inada, Suzuka Koyamada, Toru Misawa

arxiv:1801.04071 v1 · 2018-01-12 · 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{FDR2TLMHNCVQTGAZAJUBEG5VMJ}

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	2026-05-18T00:22:23.238280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28e3a9ad8768ab0998190268121bb5625ee9fe3155738f3646d2a84e7a3cd96d

Aliases

arxiv: 1801.04071 · arxiv_version: 1801.04071v1 · doi: 10.48550/arxiv.1801.04071 · pith_short_12: FDR2TLMHNCVQ · pith_short_16: FDR2TLMHNCVQTGAZ · pith_short_8: FDR2TLMH

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/FDR2TLMHNCVQTGAZAJUBEG5VMJ \
  | 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: 28e3a9ad8768ab0998190268121bb5625ee9fe3155738f3646d2a84e7a3cd96d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0777a689bd2835222a590c8ad2a19dd371f6fb0838d7ce69b9a1cf875bb8f008",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-01-12T06:44:36Z",
    "title_canon_sha256": "a4cfa24efbb1ccbc725e2753ab32c94e3e16a02ebcedf145cd7b42cbef9a7273"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04071",
    "kind": "arxiv",
    "version": 1
  }
}