Pith Number

pith:ZFY3ACVK

pith:2004:ZFY3ACVKMFJ6YQRLTMFYJYYQ4Q

not attested not anchored not stored refs pending

Planetary formation in the Gamma-Cephei system

D. Turrini, Francesco Marzari, Hans Scholl, Mauro Barbieri, Philippe Thebault

arxiv:astro-ph/0408153 v1 · 2004-08-09 · 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{ZFY3ACVKMFJ6YQRLTMFYJYYQ4Q}

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	2026-07-04T16:44:27.620626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c971b00aaa6153ec422b9b0b84e310e41469d23b7c5cbb9eed0fa1d838ce38b3

Aliases

arxiv: astro-ph/0408153 · arxiv_version: astro-ph/0408153v1 · doi: 10.48550/arxiv.astro-ph/0408153 · pith_short_12: ZFY3ACVKMFJ6 · pith_short_16: ZFY3ACVKMFJ6YQRL · pith_short_8: ZFY3ACVK

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/ZFY3ACVKMFJ6YQRLTMFYJYYQ4Q \
  | 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: c971b00aaa6153ec422b9b0b84e310e41469d23b7c5cbb9eed0fa1d838ce38b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4a8b813ff3d2392e8ffecd17b8db035d0cb7595b19a661e0cb804ae3c6d8f11",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-08-09T12:35:45Z",
    "title_canon_sha256": "f4ba06ce38d8bdd8c4bd32824214823d58717031978fdba6b22bcedd83e70cd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0408153",
    "kind": "arxiv",
    "version": 1
  }
}