Pith Number

pith:L4C7M4T2

pith:2013:L4C7M4T2724ALDY2X56GFEQ7EV

not attested not anchored not stored refs pending

An overlooked brown dwarf neighbour (T7.5 at d~5pc) of the Sun and two additional T dwarfs at about 10pc

Gabriel Bihain, Jesper Storm, Olivier Schnurr, Ralf-Dieter Scholz

arxiv:1307.2722 v2 · 2013-07-10 · 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{L4C7M4T2724ALDY2X56GFEQ7EV}

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	2026-05-18T01:48:52.358437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f05f6727afeb8058f1abf7c62921f25483050aa5762fd437e40697e454f5ec9

Aliases

arxiv: 1307.2722 · arxiv_version: 1307.2722v2 · doi: 10.48550/arxiv.1307.2722 · pith_short_12: L4C7M4T2724A · pith_short_16: L4C7M4T2724ALDY2 · pith_short_8: L4C7M4T2

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/L4C7M4T2724ALDY2X56GFEQ7EV \
  | 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: 5f05f6727afeb8058f1abf7c62921f25483050aa5762fd437e40697e454f5ec9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e49ba0050845188b724633e5f705a3fda8cc86ab1c1d2ecdf0c2e09a191cc873",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-10T09:11:21Z",
    "title_canon_sha256": "3cb6e5afedcbd0f39b8cd6321c60295ec2d59d9f43bec7fbf560c7a720092a9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2722",
    "kind": "arxiv",
    "version": 2
  }
}