Pith Number

pith:F3JPIFNM

pith:2002:F3JPIFNMFZRSJWCBO5S5WRXOBN

not attested not anchored not stored refs pending

Epsilon Indi B: a new benchmark T dwarf

(2) Hamburger Sternwarte), B. Kuhlbrodt (2) ((1) Astrophysikalisches Institut Potsdam, M. J. McCaughrean (1), N. Lodieu (1), R.-D. Scholz (1)

arxiv:astro-ph/0212487 v1 · 2002-12-20 · 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{F3JPIFNMFZRSJWCBO5S5WRXOBN}

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	2026-07-04T16:31:27.588361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ed2f415ac2e6324d8417765db46ee0b577ba9c09f38bbfbd323539cdbf60980

Aliases

arxiv: astro-ph/0212487 · arxiv_version: astro-ph/0212487v1 · doi: 10.48550/arxiv.astro-ph/0212487 · pith_short_12: F3JPIFNMFZRS · pith_short_16: F3JPIFNMFZRSJWCB · pith_short_8: F3JPIFNM

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/F3JPIFNMFZRSJWCBO5S5WRXOBN \
  | 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: 2ed2f415ac2e6324d8417765db46ee0b577ba9c09f38bbfbd323539cdbf60980

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0ff4993e81b67e8e1f9bee56dd3820f84e98f0ecc429d014f0e3e7e79d581d0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-20T15:31:04Z",
    "title_canon_sha256": "6276dcc8c1fbc41e30fca79083f529a39176c26a91456fbeee2089bd651b3642"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212487",
    "kind": "arxiv",
    "version": 1
  }
}