Pith Number

pith:22ITPWTN

pith:2003:22ITPWTN2CCEUXKQIOSSIN7WBA

not attested not anchored not stored refs pending

Absorption Line Studies in the Halo

Philipp Richter

arxiv:astro-ph/0309693 v1 · 2003-09-25 · 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{22ITPWTN2CCEUXKQIOSSIN7WBA}

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	2026-05-18T01:40:38.179548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d69137da6dd0844a5d5043a52437f608259cd59c4f9ae55e086879a4b30c8fad

Aliases

arxiv: astro-ph/0309693 · arxiv_version: astro-ph/0309693v1 · doi: 10.48550/arxiv.astro-ph/0309693 · pith_short_12: 22ITPWTN2CCE · pith_short_16: 22ITPWTN2CCEUXKQ · pith_short_8: 22ITPWTN

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/22ITPWTN2CCEUXKQIOSSIN7WBA \
  | 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: d69137da6dd0844a5d5043a52437f608259cd59c4f9ae55e086879a4b30c8fad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88de33c5d3c3b6be0b0ce1caefb273efe2bf49840676658ea9985964fe724c00",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-25T10:10:03Z",
    "title_canon_sha256": "ce8132d64cbcdc7f6d6369e0d43600b401c6f3eb90dcdeefca55341bb0a11e71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309693",
    "kind": "arxiv",
    "version": 1
  }
}