Pith Number

pith:P4PVUWTP

pith:2017:P4PVUWTPBJBJYC6KPYIZFJXQLX

not attested not anchored not stored refs pending

Chemical enrichment and accretion of nitrogen-loud quasars

Alessandro Marconi, Daeseong Park, Kenta Matsuoka, Roberto Maiolino, Tohru Nagao, Yoshiaki Taniguchi

arxiv:1709.07000 v1 · 2017-09-20 · 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{P4PVUWTPBJBJYC6KPYIZFJXQLX}

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	2026-05-18T00:28:13.980405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f1f5a5a6f0a429c0bca7e1192a6f05dd7169ee95f447dbb4d97be8c75c2d465

Aliases

arxiv: 1709.07000 · arxiv_version: 1709.07000v1 · doi: 10.48550/arxiv.1709.07000 · pith_short_12: P4PVUWTPBJBJ · pith_short_16: P4PVUWTPBJBJYC6K · pith_short_8: P4PVUWTP

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/P4PVUWTPBJBJYC6KPYIZFJXQLX \
  | 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: 7f1f5a5a6f0a429c0bca7e1192a6f05dd7169ee95f447dbb4d97be8c75c2d465

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39b3e35175edb267144d898e94c274c395d59ebf803edda45106ab5708aa1dad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-20T18:00:01Z",
    "title_canon_sha256": "f429c393b9685c906cb469dbb1a4711e8aefe08e22d9e5b3142bff5b0229b288"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07000",
    "kind": "arxiv",
    "version": 1
  }
}