Pith Number

pith:DZ6SNPCD

pith:2013:DZ6SNPCDR5YGWXI672PTZW2V2A

not attested not anchored not stored refs pending

A Compact Spectrograph to Search for Extrasolar Planets

Carlos Bacigalupo

arxiv:1308.2971 v1 · 2013-08-10 · 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{DZ6SNPCDR5YGWXI672PTZW2V2A}

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	2026-05-18T03:15:57.052804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e7d26bc438f706b5d1efe9f3cdb55d003a7fc1c798e5f4cc832f1f45db3c0aa

Aliases

arxiv: 1308.2971 · arxiv_version: 1308.2971v1 · doi: 10.48550/arxiv.1308.2971 · pith_short_12: DZ6SNPCDR5YG · pith_short_16: DZ6SNPCDR5YGWXI6 · pith_short_8: DZ6SNPCD

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/DZ6SNPCDR5YGWXI672PTZW2V2A \
  | 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: 1e7d26bc438f706b5d1efe9f3cdb55d003a7fc1c798e5f4cc832f1f45db3c0aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef90a14365ec443d516c49f936c7fd3eca307d63043d71930ae4b0bb2849714e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-08-10T05:40:36Z",
    "title_canon_sha256": "59824b064617ce58d7b1bfc4e77cff3908fd371216b053e6381ec217eb9a174a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2971",
    "kind": "arxiv",
    "version": 1
  }
}