Pith Number

pith:WHJ2DIXV

pith:1995:WHJ2DIXVK2EXASYRRWIEHIIBJ5

not attested not anchored not stored refs pending

The proximity effect on the Lyman alpha forest due to a a foreground QSO

2), (2) Dpt. Fisica Moderna (UC)-Santander-SPAIN, (3) UNSW-Sydney-AUSTRALIA), A. Fernandez-Soto (1, J.K. Webb (3) ((1) IFCA (CSIC-UC)-Santander-SPAIN, R. Carballo (1, X. Barcons (1)

arxiv:astro-ph/9511131 v1 · 1995-11-28 · 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{WHJ2DIXVK2EXASYRRWIEHIIBJ5}

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	2026-05-18T01:40:22.282200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1d3a1a2f55689704b118d9043a1014f4ef0635ea1f76243a50520c691074f3a

Aliases

arxiv: astro-ph/9511131 · arxiv_version: astro-ph/9511131v1 · doi: 10.48550/arxiv.astro-ph/9511131 · pith_short_12: WHJ2DIXVK2EX · pith_short_16: WHJ2DIXVK2EXASYR · pith_short_8: WHJ2DIXV

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/WHJ2DIXVK2EXASYRRWIEHIIBJ5 \
  | 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: b1d3a1a2f55689704b118d9043a1014f4ef0635ea1f76243a50520c691074f3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26ec4398681822812290f2061fcc0e6d658a4b1c239d204d8287b8166c615d04",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-11-28T01:05:15Z",
    "title_canon_sha256": "b33f7aeba0bd8df9d0795980cd59216d2ba61df9460aaf1b8c06417e91d44f0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9511131",
    "kind": "arxiv",
    "version": 1
  }
}