Pith Number

pith:DLAYYYBN

pith:2013:DLAYYYBNIEXP3HWFMCC4O33LVB

not attested not anchored not stored refs pending

Spectroscopy of the mysterious Be system FF Cam

A. S. Miroshnichenko, A. V. Kusakin, F. Houpert, K. N. Grankin, S. Charbonnel, S. Danford, T. Garrel

arxiv:1305.1393 v1 · 2013-05-07 · 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{DLAYYYBNIEXP3HWFMCC4O33LVB}

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	2026-05-18T03:26:21.863437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ac18c602d412efd9ec56085c76f6ba870bec6446a778d69ce74343428aeddee

Aliases

arxiv: 1305.1393 · arxiv_version: 1305.1393v1 · doi: 10.48550/arxiv.1305.1393 · pith_short_12: DLAYYYBNIEXP · pith_short_16: DLAYYYBNIEXP3HWF · pith_short_8: DLAYYYBN

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/DLAYYYBNIEXP3HWFMCC4O33LVB \
  | 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: 1ac18c602d412efd9ec56085c76f6ba870bec6446a778d69ce74343428aeddee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b968230759a96a934541143114367527ef56b49386dbda091a973bfffc6d6a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-05-07T03:47:20Z",
    "title_canon_sha256": "039679a9c3ad2f12ae34b1abe4cdd70a0017949641648b940dc4a0a99db0fa55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1393",
    "kind": "arxiv",
    "version": 1
  }
}