Pith Number

pith:NBEKHNRZ

pith:2013:NBEKHNRZJPJ5BCD53DS4E6NZLS

not attested not anchored not stored refs pending

The Rapid Decline in Metallicity of Damped Ly-alpha Systems at z~5

Arthur M. Wolfe, J. Xavier Prochaska, Marcel Neeleman, Marc Rafelski, Michele Fumagalli

arxiv:1310.6042 v2 · 2013-10-22 · 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{NBEKHNRZJPJ5BCD53DS4E6NZLS}

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	2026-05-18T01:46:55.935174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6848a3b6394bd3d0887dd8e5c279b95cb4cf33c64bc652cc670cd1da864bdb23

Aliases

arxiv: 1310.6042 · arxiv_version: 1310.6042v2 · doi: 10.48550/arxiv.1310.6042 · pith_short_12: NBEKHNRZJPJ5 · pith_short_16: NBEKHNRZJPJ5BCD5 · pith_short_8: NBEKHNRZ

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/NBEKHNRZJPJ5BCD53DS4E6NZLS \
  | 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: 6848a3b6394bd3d0887dd8e5c279b95cb4cf33c64bc652cc670cd1da864bdb23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6be9858f710082d31cb54a78e48c38245491b81f461a933838ef31a59918591e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-10-22T20:00:14Z",
    "title_canon_sha256": "fc94af6a48d0595cbe9e02ffd9177e5e6cb21834f6311a3249c29911b7e987b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6042",
    "kind": "arxiv",
    "version": 2
  }
}