Pith Number

pith:6MQWJU6Y

pith:2012:6MQWJU6Y22CLHX3JAFZW3DKAQT

not attested not anchored not stored refs pending

A Metal-Strong and Dust-Rich Damped \lya Absorption System toward the Quasar SDSS J115705.52+615521.7

Fred Hamann, Hong-Lin Lu, Hong-yan Zhou, Hui-Yuan Wang, Jason Xavier Prochaska, Jian Ge, Jian-guo Wang, Peng Jiang, Ting-Gui Wang, Weimin Yuan

arxiv:1210.1154 v2 · 2012-10-03 · astro-ph.GA · 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{6MQWJU6Y22CLHX3JAFZW3DKAQT}

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	2026-05-18T03:41:40.046524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f32164d3d8d684b3df6901736d8d4084cf0fa261f5e23526d7f96255e9910111

Aliases

arxiv: 1210.1154 · arxiv_version: 1210.1154v2 · doi: 10.48550/arxiv.1210.1154 · pith_short_12: 6MQWJU6Y22CL · pith_short_16: 6MQWJU6Y22CLHX3J · pith_short_8: 6MQWJU6Y

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/6MQWJU6Y22CLHX3JAFZW3DKAQT \
  | 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: f32164d3d8d684b3df6901736d8d4084cf0fa261f5e23526d7f96255e9910111

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43b3e848a2768e28302544d2b5be08212f6f477212058e7750f93e03c371743f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-03T15:48:08Z",
    "title_canon_sha256": "e3eb50bc9769dacc2f61723ca98cb1bb10e6cbf188e847c93fc200cd6229f299"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1154",
    "kind": "arxiv",
    "version": 2
  }
}