Pith Number

pith:3BZR6HTB

pith:2013:3BZR6HTBF6NUSCVPX7TW4EI3FK

not attested not anchored not stored refs pending

R Coronae Borealis Stars in M31 from the Palomar Transient Factory

Branimir Sesar, David Levitan, Eran O. Ofek, Eric Bellm, Frank Masci, Jason Surace, Lars Bildsten, Peter Nugent, Russ Laher, Shrinivas R. Kulkarni, Sumin Tang, Thomas A. Prince, Yi Cao

arxiv:1303.1820 v2 · 2013-03-07 · 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{3BZR6HTBF6NUSCVPX7TW4EI3FK}

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	2026-05-18T01:51:09.942581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8731f1e612f9b490aafbfe76e111b2aa2bb5a214e2338abb3bd35da26814562

Aliases

arxiv: 1303.1820 · arxiv_version: 1303.1820v2 · doi: 10.48550/arxiv.1303.1820 · pith_short_12: 3BZR6HTBF6NU · pith_short_16: 3BZR6HTBF6NUSCVP · pith_short_8: 3BZR6HTB

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/3BZR6HTBF6NUSCVPX7TW4EI3FK \
  | 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: d8731f1e612f9b490aafbfe76e111b2aa2bb5a214e2338abb3bd35da26814562

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75908eaa1d82d3af2cbdc2b63152106463d195a797bbccbae6b38b440a17a49a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-07T21:00:03Z",
    "title_canon_sha256": "e1c61797363583a7132a251f21e230dd8016af59aabecd3e0273a21d87d4524d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1820",
    "kind": "arxiv",
    "version": 2
  }
}