Pith Number

pith:UERGPN5P

pith:2013:UERGPN5P6TAC6RROFRS6ONBNJN

not attested not anchored not stored refs pending

Photometric, astrometric, and spectroscopic survey of the old open cluster Praesepe

2), 2) ((1) Instituto de Astrofisica de Canarias, (2) Universidad de La Laguna), N. Lodieu (1, S. Boudreault (1

arxiv:1306.1369 v1 · 2013-06-06 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UERGPN5P6TAC6RROFRS6ONBNJN}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:21:34.436757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a12267b7aff4c02f462e2c65e7342d4b6b74d8ef357b129193afde9f0c0a2bc8

Aliases

arxiv: 1306.1369 · arxiv_version: 1306.1369v1 · doi: 10.48550/arxiv.1306.1369 · pith_short_12: UERGPN5P6TAC · pith_short_16: UERGPN5P6TAC6RRO · pith_short_8: UERGPN5P

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/UERGPN5P6TAC6RROFRS6ONBNJN \
  | 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: a12267b7aff4c02f462e2c65e7342d4b6b74d8ef357b129193afde9f0c0a2bc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78132d2a111c838109291cbe77786d9f342c94810354ee67451247d2d4b1101f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-06-06T10:49:23Z",
    "title_canon_sha256": "afa430347f61948cb7442360256611d00d57d4f89ec0ac37d7f3cddbe9d27340"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1369",
    "kind": "arxiv",
    "version": 1
  }
}