Pith Number

pith:6DHONGQ3

pith:2009:6DHONGQ3K4THHBDUNGTL2SRQ3W

not attested not anchored not stored refs pending

Diffuse molecular gas at high redshift: Detection of CO molecules and the 2175 {\AA} dust feature at z=1.64

C. Ledoux, P. Noterdaeme, P. Petitjean, R. Srianand, S. Lopez

arxiv:0906.1585 v1 · 2009-06-08 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6DHONGQ3K4THHBDUNGTL2SRQ3W}

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	2026-05-18T02:13:21.453656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0cee69a1b572673847469a6bd4a30ddb31e68c1e36c2c42122603c1f180f236

Aliases

arxiv: 0906.1585 · arxiv_version: 0906.1585v1 · doi: 10.48550/arxiv.0906.1585 · pith_short_12: 6DHONGQ3K4TH · pith_short_16: 6DHONGQ3K4THHBDU · pith_short_8: 6DHONGQ3

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/6DHONGQ3K4THHBDUNGTL2SRQ3W \
  | 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: f0cee69a1b572673847469a6bd4a30ddb31e68c1e36c2c42122603c1f180f236

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f767d7e7f2a48be2b4a52e4bbc782c991dc29c70a3a57950c64f047c0317f8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-08T20:04:07Z",
    "title_canon_sha256": "9240c39883be008fe7d9bf93d24e3250524dab21263fc033c7d25e6044c1407c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1585",
    "kind": "arxiv",
    "version": 1
  }
}