Pith Number

pith:7FKODUFN

pith:2014:7FKODUFNWHVXOOXZNMQFGZYOGZ

not attested not anchored not stored refs pending

The dust, nebular emission and dependence on QSO radio properties of the associated Mg II absorption line systems

Daniel Vanden Berk, Donald G. York, Hadi Rahmani, Pushpa Khare

arxiv:1408.4458 v1 · 2014-08-19 · 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{7FKODUFNWHVXOOXZNMQFGZYOGZ}

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	2026-05-18T01:42:17.149425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f954e1d0adb1eb773af96b2053670e367c94b073cc1a2e5bfda151bebfb3660e

Aliases

arxiv: 1408.4458 · arxiv_version: 1408.4458v1 · doi: 10.48550/arxiv.1408.4458 · pith_short_12: 7FKODUFNWHVX · pith_short_16: 7FKODUFNWHVXOOXZ · pith_short_8: 7FKODUFN

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/7FKODUFNWHVXOOXZNMQFGZYOGZ \
  | 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: f954e1d0adb1eb773af96b2053670e367c94b073cc1a2e5bfda151bebfb3660e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcf2c651eb0ea0cb50cf06819f0359ef3974f0c62d6472749efe2ea374624da9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-08-19T20:00:21Z",
    "title_canon_sha256": "9fc389f84a23c21d0c8d9a7691048456732cd0d43ab943535f8b631d0b889faa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4458",
    "kind": "arxiv",
    "version": 1
  }
}