Pith Number

pith:WJHJKFD6

pith:2019:WJHJKFD6H56QVY4DQURYFXKJ33

not attested not anchored not stored refs pending

The Blueshift Of Civ Broad Emission Line In Qsos

2. UoA), Bi-Xuan Zhao (1), Green Richard Frederick (2) (1.NJNU, Wei-Hao Bian (1), Xue Ge (1)

arxiv:1903.08830 v1 · 2019-03-21 · 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{WJHJKFD6H56QVY4DQURYFXKJ33}

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	2026-05-17T23:49:38.451604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b24e95147e3f7d0ae383852382dd49decc873d77e998cff5c04ae1343568fab5

Aliases

arxiv: 1903.08830 · arxiv_version: 1903.08830v1 · doi: 10.48550/arxiv.1903.08830 · pith_short_12: WJHJKFD6H56Q · pith_short_16: WJHJKFD6H56QVY4D · pith_short_8: WJHJKFD6

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/WJHJKFD6H56QVY4DQURYFXKJ33 \
  | 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: b24e95147e3f7d0ae383852382dd49decc873d77e998cff5c04ae1343568fab5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da425fd35ccb4b6041651dd885bf301efc81b488f5c920786302708e7edac51f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-21T05:00:15Z",
    "title_canon_sha256": "011b394eb84e37547d25551e081ed7bbb176d6bc9701c16b66812970c49f8594"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08830",
    "kind": "arxiv",
    "version": 1
  }
}