Pith Number

pith:X2NXCMMA

pith:2009:X2NXCMMAEJSCG22H6CC47NXCJJ

not attested not anchored not stored refs pending

On the Redshift Evolution of MgII Absorption Systems

Jeremy L. Tinker (Berkeley/BCCP) Hsiao-Wen Chen (Chicago/KICP)

arxiv:0908.3691 v2 · 2009-08-25 · 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{X2NXCMMAEJSCG22H6CC47NXCJJ}

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.

Cited by

1 paper in Pith

Magnetised CGM Gas at z~1 revealed by SPICE-RACS

Receipt and verification

First computed	2026-05-18T02:12:23.038510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be9b7131802264236b47f085cfb6e24a7ccc192d5761a4319435c9c0635ab52d

Aliases

arxiv: 0908.3691 · arxiv_version: 0908.3691v2 · doi: 10.48550/arxiv.0908.3691 · pith_short_12: X2NXCMMAEJSC · pith_short_16: X2NXCMMAEJSCG22H · pith_short_8: X2NXCMMA

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/X2NXCMMAEJSCG22H6CC47NXCJJ \
  | 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: be9b7131802264236b47f085cfb6e24a7ccc192d5761a4319435c9c0635ab52d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "230c5d0307ed3d8db378015ada6d6c7b7cb7be3e8ccfc7cb65c69122aff5d18b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-25T21:27:02Z",
    "title_canon_sha256": "7fdfefa952a270e2d2cb3dc4f28dcd7988d11a7f42bc59d1b90c0f63f2f73d87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3691",
    "kind": "arxiv",
    "version": 2
  }
}