Pith Number

pith:YQRU7CDK

pith:2014:YQRU7CDKMKJ3TWARAGG3XZRRLG

not attested not anchored not stored refs pending

Simultaneous Multiwavelength Observations of Magnetic Activity in Ultracool Dwarfs. IV. The Active, Young Binary NLTT 33370 AB (=2MASS J13142039+1320011)

(2) MIT Kavli Institute), D. Charbonneau (1) ((1) Harvard, E. Berger (1), J. Irwin (1), P. K. G. Williams (1), Z. K. Berta-Thompson (2)

arxiv:1409.4411 v3 · 2014-09-15 · 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{YQRU7CDKMKJ3TWARAGG3XZRRLG}

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	2026-05-18T01:42:02.481051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4234f886a6293b9d811018dbbe63159a501afd7e5c3bc570754a3d7ca6df93b

Aliases

arxiv: 1409.4411 · arxiv_version: 1409.4411v3 · doi: 10.48550/arxiv.1409.4411 · pith_short_12: YQRU7CDKMKJ3 · pith_short_16: YQRU7CDKMKJ3TWAR · pith_short_8: YQRU7CDK

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/YQRU7CDKMKJ3TWARAGG3XZRRLG \
  | 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: c4234f886a6293b9d811018dbbe63159a501afd7e5c3bc570754a3d7ca6df93b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47779c1bf6ed47aaada4db9235851fea9456124805ccd5825118b6c38a0bce66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-09-15T20:00:02Z",
    "title_canon_sha256": "56ba82fb8d0606c61afc804a25c23ddc46e4791a27a6b794c77365c537c6529d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4411",
    "kind": "arxiv",
    "version": 3
  }
}