Pith Number

pith:7QGBSTRL

pith:2006:7QGBSTRLU644K2GK3ESXMEIZE5

not attested not anchored not stored refs pending

Mass Determination and Detection of the Onset of Chromospheric Activity for the Sub-Stellar Object in EF Eridani

Frederick M. Walter, Mark E. Huber, Richard L. White, Robert H. Becker, Steve B. Howell, Thomas E. Harrison

arxiv:astro-ph/0607140 v1 · 2006-07-07 · 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{7QGBSTRLU644K2GK3ESXMEIZE5}

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	2026-05-18T04:28:58.473461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc0c194e2ba7b9c568cad9257611192766c8f168132c9d680fd18da14437b5de

Aliases

arxiv: astro-ph/0607140 · arxiv_version: astro-ph/0607140v1 · doi: 10.48550/arxiv.astro-ph/0607140 · pith_short_12: 7QGBSTRLU644 · pith_short_16: 7QGBSTRLU644K2GK · pith_short_8: 7QGBSTRL

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/7QGBSTRLU644K2GK3ESXMEIZE5 \
  | 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: fc0c194e2ba7b9c568cad9257611192766c8f168132c9d680fd18da14437b5de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6f4e1d9a21aace18c8e0630de337b21c99a5eaecc678ab467ee85183b3f3f24",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-07T16:25:31Z",
    "title_canon_sha256": "9475c61ccb0c24019cdc068bd5276541369095120e18c245e575430ea67fb92b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607140",
    "kind": "arxiv",
    "version": 1
  }
}