Pith Number

pith:SEHFPKHJ

pith:2017:SEHFPKHJDQA7Z7Q6M7JFRCJDQC

not attested not anchored not stored refs pending

Simultaneous detection and analysis of optical and ultraviolet broad emission lines in quasars at z~2.2

Alessandro Marconi, Gabriele Ponti, Guido Risaliti, Luis C. Ho, Paolo Goldoni, Sperello di Serego Alighieri, Susanna Bisogni

arxiv:1702.08046 v1 · 2017-02-26 · 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{SEHFPKHJDQA7Z7Q6M7JFRCJDQC}

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	2026-05-18T00:40:58.794245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

910e57a8e91c01fcfe1e67d25889238093270226859e2734775d8108d7e86800

Aliases

arxiv: 1702.08046 · arxiv_version: 1702.08046v1 · doi: 10.48550/arxiv.1702.08046 · pith_short_12: SEHFPKHJDQA7 · pith_short_16: SEHFPKHJDQA7Z7Q6 · pith_short_8: SEHFPKHJ

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/SEHFPKHJDQA7Z7Q6M7JFRCJDQC \
  | 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: 910e57a8e91c01fcfe1e67d25889238093270226859e2734775d8108d7e86800

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99123d1fab931c8242ce317e0c34b2cc440250de1173777c21e6589fcd848614",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-26T15:35:06Z",
    "title_canon_sha256": "343af7ceafb7de39399275b3681f4d5a1dfbb1805a265b2a7e8edf4e0971ea87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08046",
    "kind": "arxiv",
    "version": 1
  }
}