Pith Number

pith:OFUGDGXF

pith:2013:OFUGDGXFM4SYLVB6WVDD3UA4LN

not attested not anchored not stored refs pending

X-Shooter spectroscopy of brown dwarfs in the TW Hya association

A. Frasca, B.Stelzer, J.M. Alcala

arxiv:1307.0618 v1 · 2013-07-02 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFUGDGXFM4SYLVB6WVDD3UA4LN}

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	2026-05-18T03:19:25.124547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7168619ae5672585d43eb5463dd01c5b47bca0b6cbc45fc6605fed7d956786d8

Aliases

arxiv: 1307.0618 · arxiv_version: 1307.0618v1 · doi: 10.48550/arxiv.1307.0618 · pith_short_12: OFUGDGXFM4SY · pith_short_16: OFUGDGXFM4SYLVB6 · pith_short_8: OFUGDGXF

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/OFUGDGXFM4SYLVB6WVDD3UA4LN \
  | 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: 7168619ae5672585d43eb5463dd01c5b47bca0b6cbc45fc6605fed7d956786d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04aab01131a188f7735cd4ebc3baf886f6e7cff80d743e9d5ca0f2cc99d3eea8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-02T08:18:30Z",
    "title_canon_sha256": "d11ad802ee6c625896bb0b2f149da2e892b850ff0053a5f55cee6188a61601e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0618",
    "kind": "arxiv",
    "version": 1
  }
}