Pith Number

pith:OA6ZT3BS

pith:2013:OA6ZT3BSVR7ODY4ZT34GVIKOCW

not attested not anchored not stored refs pending

H{\alpha} photometry of low mass stars in 47 Tucanae: chromospheric activity and exotica

G. Beccari, G. de Marchi, L. Pasquini, N. Panagia

arxiv:1310.6673 v1 · 2013-10-24 · 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{OA6ZT3BSVR7ODY4ZT34GVIKOCW}

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	2026-05-18T01:46:50.002563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

703d99ec32ac7ee1e3999ef86aa14e159745bbc4875fb2b58accf3512a97366e

Aliases

arxiv: 1310.6673 · arxiv_version: 1310.6673v1 · doi: 10.48550/arxiv.1310.6673 · pith_short_12: OA6ZT3BSVR7O · pith_short_16: OA6ZT3BSVR7ODY4Z · pith_short_8: OA6ZT3BS

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/OA6ZT3BSVR7ODY4ZT34GVIKOCW \
  | 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: 703d99ec32ac7ee1e3999ef86aa14e159745bbc4875fb2b58accf3512a97366e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39d77f89c6dab72d6d8f11812cbdf1926ea45056b846913a17e5bbfc5f921125",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-10-24T16:59:26Z",
    "title_canon_sha256": "7f7f435de4706d9951188becb8652b9c9ec88f2be837af56d6da63baca0737db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6673",
    "kind": "arxiv",
    "version": 1
  }
}