Pith Number

pith:SJAOIVML

pith:2015:SJAOIVMLXIEBAMRQD46ZF4ODC7

not attested not anchored not stored refs pending

Hubble Space Telescope Observations of Sub-Damped Lyman-alpha Absorbers at z < 0.5, and Implications for Galaxy Chemical Evolution

(2) University of Massachusetts, (3) University of Chicago, 4), (4) The Enrico Fermi Institute, (5) Aix Marseille Universit\'e, (6) University of Louisville, (7) Georgia Southern University, (8) Inter-University Center for Astronomy & Astrophysics), Celine P\'eroux (5), CNRS, Debopam Som (1), Department of Astronomy, Department of Astronomy & Astrophysics, Department of Physics, Department of Physics & Astronomy, Donald G. York (3, James T. Lauroesch (6), Joseph Meiring (2), Laboratoire d'Astrophysique de Marseille, Monique C. Aller (7), Pushpa Khare (8) ((1) University of South Carolina, Varsha P. Kulkarni (1)

arxiv:1502.01989 v3 · 2015-02-06 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SJAOIVMLXIEBAMRQD46ZF4ODC7}

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	2026-05-18T01:55:32.867893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9240e4558bba081032301f3d92f1c317d6993712da27aa9445b126a70059889f

Aliases

arxiv: 1502.01989 · arxiv_version: 1502.01989v3 · doi: 10.48550/arxiv.1502.01989 · pith_short_12: SJAOIVMLXIEB · pith_short_16: SJAOIVMLXIEBAMRQ · pith_short_8: SJAOIVML

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/SJAOIVMLXIEBAMRQD46ZF4ODC7 \
  | 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: 9240e4558bba081032301f3d92f1c317d6993712da27aa9445b126a70059889f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e9b3cc7927e249495ebdfe16c3e52d49ba29a05b0f5ad80381f609059df3c02",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-02-06T19:03:10Z",
    "title_canon_sha256": "311ffe9419005050a48c2a79293909356ee6098ef7741a92f8f015d53e89c306"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01989",
    "kind": "arxiv",
    "version": 3
  }
}