Pith Number

pith:3UN64NLV

pith:2012:3UN64NLVABEYBZAIARR4SO4WVC

not attested not anchored not stored refs pending

MgII Absorption at 2 < z < 6 with Magellan / FIRE. II: A Longitudinal Study of HI, Metals, and Ionization in Galactic Haloes

Eduardo N. Seyffert (MIT), Kathy L. Cooksey, Michael S. Matejek, Robert A. Simcoe

arxiv:1207.2470 v2 · 2012-07-10 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3UN64NLVABEYBZAIARR4SO4WVC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:56:25.648848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd1bee3575004980e4080463c93b96a893055d176d60b499ec09e483a83bed55

Aliases

arxiv: 1207.2470 · arxiv_version: 1207.2470v2 · doi: 10.48550/arxiv.1207.2470 · pith_short_12: 3UN64NLVABEY · pith_short_16: 3UN64NLVABEYBZAI · pith_short_8: 3UN64NLV

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/3UN64NLVABEYBZAIARR4SO4WVC \
  | 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: dd1bee3575004980e4080463c93b96a893055d176d60b499ec09e483a83bed55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95e58e42a924c461dccaa51f99c45b15220171140005d663df7cbac0b5840d26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-10T20:00:03Z",
    "title_canon_sha256": "f07d1c49eaa4d3c3d2e7b23bc18a104eca95e62b0fc8f1d8218b568c1ccfe463"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2470",
    "kind": "arxiv",
    "version": 2
  }
}