Pith Number

pith:SLVVWAA7

pith:2012:SLVVWAA75W5N6UZOSNFXZD3SYC

not attested not anchored not stored refs pending

Precious Metals in SDSS Quasar Spectra I: Tracking the Evolution of Strong, 1.5 < z < 4.5 CIV Absorbers with Thousands of Systems

(2) Caltech, (3) MIT, (4) St. Michael's College, (5) UC Santa Cruz, John M. O'Meara (4), J. Xavier Prochaska (5) ((1) MIT Kavli Institute for Astrophysics & Space Research, Kathy L. Cooksey (1), Melodie M. Kao (2), Robert A. Simcoe (3), UCO/Lick Observatory), VT

arxiv:1204.2827 v2 · 2012-04-12 · 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{SLVVWAA75W5N6UZOSNFXZD3SYC}

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	2026-05-18T01:57:52.976111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92eb5b001fedbadf532e934b7c8f72c0922c3b71d00ab4f9901f784d176fafcd

Aliases

arxiv: 1204.2827 · arxiv_version: 1204.2827v2 · doi: 10.48550/arxiv.1204.2827 · pith_short_12: SLVVWAA75W5N · pith_short_16: SLVVWAA75W5N6UZO · pith_short_8: SLVVWAA7

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/SLVVWAA75W5N6UZOSNFXZD3SYC \
  | 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: 92eb5b001fedbadf532e934b7c8f72c0922c3b71d00ab4f9901f784d176fafcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d46425d9605bb8287c20e655afb8e52e1597ca4877a60e1bb1432ddeb5400ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-12T20:00:04Z",
    "title_canon_sha256": "4c6e764403a8b4e9a6926d95b55ec959db735e54eb34f5d75c8e3066d4d2d78b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2827",
    "kind": "arxiv",
    "version": 2
  }
}