Pith Number

pith:B4YAYM2W

pith:1996:B4YAYM2WN6TTGJFCTWQOAV5CNC

not attested not anchored not stored refs pending

Keck High Resolution Spectroscopy of PKS 0123+257: Intrinsic Absorption in a Radio Loud Quasar

Thomas A. Barlow, W. L. W. Sargent (Caltech)

arxiv:astro-ph/9611010 v1 · 1996-11-01 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B4YAYM2WN6TTGJFCTWQOAV5CNC}

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	2026-05-18T02:40:35.253197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f300c33566fa73324a29da0e057a268a5c536e0ab5b490074b72bccabc5683a

Aliases

arxiv: astro-ph/9611010 · arxiv_version: astro-ph/9611010v1 · doi: 10.48550/arxiv.astro-ph/9611010 · pith_short_12: B4YAYM2WN6TT · pith_short_16: B4YAYM2WN6TTGJFC · pith_short_8: B4YAYM2W

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/B4YAYM2WN6TTGJFCTWQOAV5CNC \
  | 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: 0f300c33566fa73324a29da0e057a268a5c536e0ab5b490074b72bccabc5683a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae788d389bba369bc82cd7f69ee42bdf36eeacfb1a1b60df8674fa1d508b48b8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-11-01T23:21:49Z",
    "title_canon_sha256": "8199216aab1fdb637e3dfa405a0c34e460eaf96f6bd09edccad4259f02d124de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9611010",
    "kind": "arxiv",
    "version": 1
  }
}