Pith Number

pith:MS3KZUYW

pith:2003:MS3KZUYWQP4GPZ2Y3KNJOIZBKB

not attested not anchored not stored refs pending

H_2 absorption in a dense interstellar filament in the Milky Way halo

& J. C. Howk, K. R. Sembach, P. Richter

arxiv:astro-ph/0305017 v1 · 2003-05-01 · 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{MS3KZUYWQP4GPZ2Y3KNJOIZBKB}

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	2026-05-18T04:21:41.512392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64b6acd31683f867e758da9a9723215056d09b0443c0969570ff5e975381b9fe

Aliases

arxiv: astro-ph/0305017 · arxiv_version: astro-ph/0305017v1 · doi: 10.48550/arxiv.astro-ph/0305017 · pith_short_12: MS3KZUYWQP4G · pith_short_16: MS3KZUYWQP4GPZ2Y · pith_short_8: MS3KZUYW

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/MS3KZUYWQP4GPZ2Y3KNJOIZBKB \
  | 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: 64b6acd31683f867e758da9a9723215056d09b0443c0969570ff5e975381b9fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5742f026c7e785e668ab6506d438a003f9d5aae74873118fab7cce2b3369af4b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-01T11:10:29Z",
    "title_canon_sha256": "cf9f5feae5ccc40ebda02453637ff5b9097e3db69f9022d4f9c939f2996f73ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305017",
    "kind": "arxiv",
    "version": 1
  }
}