Pith Number

pith:XN4PPENR

pith:1998:XN4PPENR64VUUVHB5HDDZCA3HV

not attested not anchored not stored refs pending

Terminal Velocity Infall in QSO Absorption Line Halos

Robert A. Benjamin

arxiv:astro-ph/9811065 v1 · 1998-11-04 · 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{XN4PPENR64VUUVHB5HDDZCA3HV}

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	2026-07-04T14:16:17.249961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb78f791b1f72b4a54e1e9c63c881b3d7305329c49585e01f5dca73adcf62db2

Aliases

arxiv: astro-ph/9811065 · arxiv_version: astro-ph/9811065v1 · doi: 10.48550/arxiv.astro-ph/9811065 · pith_short_12: XN4PPENR64VU · pith_short_16: XN4PPENR64VUUVHB · pith_short_8: XN4PPENR

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/XN4PPENR64VUUVHB5HDDZCA3HV \
  | 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: bb78f791b1f72b4a54e1e9c63c881b3d7305329c49585e01f5dca73adcf62db2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67d8d11f815aad980b71344de3b795a1dfd84a3dcbdc536ebd6f00198cb06327",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-11-04T02:00:01Z",
    "title_canon_sha256": "c5e3e8087cae690b229f869271af3be679141ca3c8a20545b7cfe06809e84644"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9811065",
    "kind": "arxiv",
    "version": 1
  }
}