Pith Number

pith:2H4QGBBW

pith:2011:2H4QGBBWCS7UT5WCFSP6EUBDEZ

not attested not anchored not stored refs pending

Towards Detecting The 2175-{\AA} Dust Feature Associated With Strong High Redshift Mg {\ss}II Absorption Lines

Hongyan Zhou, Jian Ge, Junxian Wang, Peng Jiang, Tinggui Wang

arxiv:1103.1932 v1 · 2011-03-10 · 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{2H4QGBBWCS7UT5WCFSP6EUBDEZ}

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	2026-05-18T02:02:55.382239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1f903043614bf49f6c22c9fe25023265c0a50cec5e0355f84aeb07b16515dd5

Aliases

arxiv: 1103.1932 · arxiv_version: 1103.1932v1 · doi: 10.48550/arxiv.1103.1932 · pith_short_12: 2H4QGBBWCS7U · pith_short_16: 2H4QGBBWCS7UT5WC · pith_short_8: 2H4QGBBW

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/2H4QGBBWCS7UT5WCFSP6EUBDEZ \
  | 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: d1f903043614bf49f6c22c9fe25023265c0a50cec5e0355f84aeb07b16515dd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40932c58eb77f7579752de4f3351c886b981207fe3eba5b3873db3fdc34df597",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-10T02:57:40Z",
    "title_canon_sha256": "e35b1ec4df5e063b3adce8f63e40f810d0485463e25fee082c01d490c2a26be4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1932",
    "kind": "arxiv",
    "version": 1
  }
}