Pith Number

pith:Y72EESXK

pith:2017:Y72EESXK4HYKCSBFV7FM2LSCYD

not attested not anchored not stored refs pending

Color difference makes a difference: four planet candidates around tau Ceti

Fabo Feng, Guillem Anglada-Escude, Hugh R.A. Jones, John Barnes, Mikko Tuomi, R. Paul Butler, Steven S. Vogt

arxiv:1708.02051 v1 · 2017-08-07 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y72EESXK4HYKCSBFV7FM2LSCYD}

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	2026-05-18T00:35:30.691999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7f4424aeae1f0a14825afcacd2e42c0efac5e08160df8ecc539636beebf1181

Aliases

arxiv: 1708.02051 · arxiv_version: 1708.02051v1 · doi: 10.48550/arxiv.1708.02051 · pith_short_12: Y72EESXK4HYK · pith_short_16: Y72EESXK4HYKCSBF · pith_short_8: Y72EESXK

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/Y72EESXK4HYKCSBFV7FM2LSCYD \
  | 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: c7f4424aeae1f0a14825afcacd2e42c0efac5e08160df8ecc539636beebf1181

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ad400d5d310b2a77853a8a675a0421d292c40e5e553e457dd9d51b803c9a8ba",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-08-07T09:42:53Z",
    "title_canon_sha256": "a650de9a7842f4422170df203f1eb9cee27b5999fc05adba9537c6a45afc628a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02051",
    "kind": "arxiv",
    "version": 1
  }
}