Pith Number

pith:VOF7P2EB

pith:2013:VOF7P2EBDDO6POV6JHQDBOLBOQ

not attested not anchored not stored refs pending

A Near-Infrared Spectroscopic Study of Young Field Ultracool Dwarfs

K. N. Allers, Michael C. Liu

arxiv:1305.4418 v2 · 2013-05-20 · 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{VOF7P2EBDDO6POV6JHQDBOLBOQ}

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	2026-05-18T01:49:48.910004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab8bf7e88118dde7babe49e030b961742fab85d44277267643421f51ab69afed

Aliases

arxiv: 1305.4418 · arxiv_version: 1305.4418v2 · doi: 10.48550/arxiv.1305.4418 · pith_short_12: VOF7P2EBDDO6 · pith_short_16: VOF7P2EBDDO6POV6 · pith_short_8: VOF7P2EB

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/VOF7P2EBDDO6POV6JHQDBOLBOQ \
  | 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: ab8bf7e88118dde7babe49e030b961742fab85d44277267643421f51ab69afed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97db2543a430428f52c6492fa878b13c9bda065cbfcc66ba488c557ab6fec005",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-05-20T00:20:32Z",
    "title_canon_sha256": "8ef53b928a32bd785a81927d9bf89eb8b9c851ddb65c6d3293eb57293b81897d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4418",
    "kind": "arxiv",
    "version": 2
  }
}