Pith Number

pith:ZHQP2DYU

pith:2009:ZHQP2DYUULTPYK26BFZNS5LRSS

not attested not anchored not stored refs pending

The changing phases of extrasolar planet CoRoT-1b

Ernst J.W. de Mooij, Ignas A.G. Snellen, Leiden University), Simon Albrecht (Leiden Observatory

arxiv:0904.1208 v1 · 2009-04-08 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZHQP2DYUULTPYK26BFZNS5LRSS}

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	2026-05-18T02:14:06.995836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9e0fd0f14a2e6fc2b5e0972d97571949ce98c72864a2115c17c6e4ca0d89c64

Aliases

arxiv: 0904.1208 · arxiv_version: 0904.1208v1 · doi: 10.48550/arxiv.0904.1208 · pith_short_12: ZHQP2DYUULTP · pith_short_16: ZHQP2DYUULTPYK26 · pith_short_8: ZHQP2DYU

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/ZHQP2DYUULTPYK26BFZNS5LRSS \
  | 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: c9e0fd0f14a2e6fc2b5e0972d97571949ce98c72864a2115c17c6e4ca0d89c64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6e126db09e8b01ce0e7857a6bf4f9d35db90409fafe6f645848d52f7e51aac2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-04-08T12:08:23Z",
    "title_canon_sha256": "6da178fa64befccb9f3ff963734b31e064589ba0628ce9d1b0a8d60fa3f752d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1208",
    "kind": "arxiv",
    "version": 1
  }
}