Pith Number

pith:VXDXD22F

pith:2015:VXDXD22FLNRXLNGAEYOQDGYA4I

not attested not anchored not stored refs pending

Cold gas and a Milky Way-type 2175 {\AA} bump in a metal-rich and highly depleted absorption system

Britt Lundgren, Donald P. Schneider, Hadi Rahmani, Isabelle P\^aris, Jian Ge, Jingzhe Ma, J. Xavier Prochaska, Pasquier Noterdaeme, Paul Caucal, Peng Jiang, Shaohua Zhang, Tuo Ji

arxiv:1509.01593 v1 · 2015-09-04 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VXDXD22FLNRXLNGAEYOQDGYA4I}

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	2026-05-18T01:30:17.992027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adc771eb455b6375b4c0261d019b00e21993d1d5b40c1011df16df2d3f45228b

Aliases

arxiv: 1509.01593 · arxiv_version: 1509.01593v1 · doi: 10.48550/arxiv.1509.01593 · pith_short_12: VXDXD22FLNRX · pith_short_16: VXDXD22FLNRXLNGA · pith_short_8: VXDXD22F

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/VXDXD22FLNRXLNGAEYOQDGYA4I \
  | 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: adc771eb455b6375b4c0261d019b00e21993d1d5b40c1011df16df2d3f45228b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97ed17b4776d2ed9db6d9704b604b858a0221b3e467320f6cd57dfd2ce1de113",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-04T20:09:22Z",
    "title_canon_sha256": "df81dbeae1f7fd3497032139a03b86cb1b9e4b509ea22fd9b1afa8756f4ae7ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01593",
    "kind": "arxiv",
    "version": 1
  }
}