Pith Number

pith:OTZSU4BV

pith:2013:OTZSU4BVIWYGPMBTF2N3PVIL7Z

not attested not anchored not stored refs pending

Fitting isochrones to open cluster photometric data III. Estimating metallicities from UBV photometry

A. F. Oliveira, H. Monteiro, T. C. Caetano, W. S. Dias

arxiv:1307.2182 v1 · 2013-07-08 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTZSU4BVIWYGPMBTF2N3PVIL7Z}

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	2026-05-18T03:19:02.168083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74f32a703545b067b0332e9bb7d50bfe60260856a447b4034721bef806d5d785

Aliases

arxiv: 1307.2182 · arxiv_version: 1307.2182v1 · doi: 10.48550/arxiv.1307.2182 · pith_short_12: OTZSU4BVIWYG · pith_short_16: OTZSU4BVIWYGPMBT · pith_short_8: OTZSU4BV

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/OTZSU4BVIWYGPMBTF2N3PVIL7Z \
  | 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: 74f32a703545b067b0332e9bb7d50bfe60260856a447b4034721bef806d5d785

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97fb7a9092f6936b1c7c199c32689245bb08d243c71c203e4539121649fed0c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-08T17:30:21Z",
    "title_canon_sha256": "babc8fd94e077b3e4ec7a298614b89d91515d5f4d02da3955c58f41175e0540c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2182",
    "kind": "arxiv",
    "version": 1
  }
}