Pith Number

pith:7HXBR5X4

pith:2008:7HXBR5X4T2VAIX3WSH5GDKUGA4

not attested not anchored not stored refs pending

Periodic Radio and H-alpha Emission from the L Dwarf Binary 2MASSW J0746425+200032: Exploring the Magnetic Field Topology and Radius of an L Dwarf

E. Berger (Harvard), E. Martin, G. Basri, J.E. Gizis, J. Liebert, M.S. Giampapa, N. Phan-Bao, R.E. Rutledge, T.A. Fleming

arxiv:0809.0001 v1 · 2008-08-29 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7HXBR5X4T2VAIX3WSH5GDKUGA4}

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	2026-05-18T04:29:32.934470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9ee18f6fc9eaa045f7691fa61aa86070c59b479992a1f4d59a6840447c1eb0f

Aliases

arxiv: 0809.0001 · arxiv_version: 0809.0001v1 · doi: 10.48550/arxiv.0809.0001 · pith_short_12: 7HXBR5X4T2VA · pith_short_16: 7HXBR5X4T2VAIX3W · pith_short_8: 7HXBR5X4

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/7HXBR5X4T2VAIX3WSH5GDKUGA4 \
  | 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: f9ee18f6fc9eaa045f7691fa61aa86070c59b479992a1f4d59a6840447c1eb0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cb22b86482e213f34fcb6976f73118adc69e70c9c25f50a5f3e25d3e3d6fc61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-08-29T20:02:59Z",
    "title_canon_sha256": "230bb5b5a0b21b915a33b7ad4b65e3d1c87961bc6ea106f66c2b461f9d9a7c83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.0001",
    "kind": "arxiv",
    "version": 1
  }
}