Pith Number

pith:PWDZSKJZ

pith:1996:PWDZSKJZKCCO6KEGICAXRSL35T

not attested not anchored not stored refs pending

Lyman $\alpha$ Absorption as a Sensitive Probe of the H I Column in Cooling Flows

Ari Laor

arxiv:astro-ph/9609163 v1 · 1996-09-24 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PWDZSKJZKCCO6KEGICAXRSL35T}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:07:40.764017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d879929395084ef2886408178c97becc1332979b0d3e7546833b5552b5553b7

Aliases

arxiv: astro-ph/9609163 · arxiv_version: astro-ph/9609163v1 · doi: 10.48550/arxiv.astro-ph/9609163 · pith_short_12: PWDZSKJZKCCO · pith_short_16: PWDZSKJZKCCO6KEG · pith_short_8: PWDZSKJZ

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/PWDZSKJZKCCO6KEGICAXRSL35T \
  | 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: 7d879929395084ef2886408178c97becc1332979b0d3e7546833b5552b5553b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dabc56995f3f498f5ed61b2bd9b9306bd325589fe7eabef030baba29a28b5857",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-09-24T18:29:33Z",
    "title_canon_sha256": "68948cc80a0b7a88015a8d7bdef276c72b90b05f579edbdc17b3d2caaf5a33be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9609163",
    "kind": "arxiv",
    "version": 1
  }
}