Pith Number

pith:QDTSVRIC

pith:2003:QDTSVRICZ35JND5KMXCHE6NTFI

not attested not anchored not stored refs pending

FUSE observations of the HI interstellar gas of IZw18

A. Lecavelier des Etangs, A. Vidal-Madjar, D. Kunth, G. Callejo, G. Hebrard, J.-M. Desert, R. Ferlet, V. Lebouteiller

arxiv:astro-ph/0309766 v1 · 2003-09-29 · 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{QDTSVRICZ35JND5KMXCHE6NTFI}

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	2026-07-04T16:51:46.422645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80e72ac502cefa968faa65c47279b32a0f06afa82aa7e65e6b136930464e21fd

Aliases

arxiv: astro-ph/0309766 · arxiv_version: astro-ph/0309766v1 · doi: 10.48550/arxiv.astro-ph/0309766 · pith_short_12: QDTSVRICZ35J · pith_short_16: QDTSVRICZ35JND5K · pith_short_8: QDTSVRIC

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/QDTSVRICZ35JND5KMXCHE6NTFI \
  | 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: 80e72ac502cefa968faa65c47279b32a0f06afa82aa7e65e6b136930464e21fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d618f2d05314c9ac062727f7b6a3c07a92a92a109f85a803742b5e110ff4871b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-29T08:29:39Z",
    "title_canon_sha256": "96ffa6a29bcf64aec3e7b0780ed3f0864b5180cf0807b325c3edd3e9fbea6eaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309766",
    "kind": "arxiv",
    "version": 1
  }
}