Pith Number

pith:2LFUFBCQ

pith:2011:2LFUFBCQA6MDJB3D3AKLN627CB

not attested not anchored not stored refs pending

325 MHz VLA Observations of Ultracool Dwarfs TVLM 513-46546 and 2MASS J0036+1821104

N. Kassim, R. A. Osten, R. L. Mutel, T. J. Lazio, T. R. Jaeger

arxiv:1109.3340 v1 · 2011-09-15 · 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{2LFUFBCQA6MDJB3D3AKLN627CB}

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	2026-05-18T04:03:42.910244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2cb4284500798348763d814b6fb5f106b6608a4bf0564c71f50008a7303c652

Aliases

arxiv: 1109.3340 · arxiv_version: 1109.3340v1 · doi: 10.48550/arxiv.1109.3340 · pith_short_12: 2LFUFBCQA6MD · pith_short_16: 2LFUFBCQA6MDJB3D · pith_short_8: 2LFUFBCQ

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/2LFUFBCQA6MDJB3D3AKLN627CB \
  | 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: d2cb4284500798348763d814b6fb5f106b6608a4bf0564c71f50008a7303c652

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "736c88b3fb62c21ed90852ea25a11a9c59055238a98ffbd089e6b86b4db0e0bd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-15T13:08:18Z",
    "title_canon_sha256": "90311b8da70cbe3b6b33408ac2767603cec19c348087429e3f956c2fd6703160"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3340",
    "kind": "arxiv",
    "version": 1
  }
}