Pith Number

pith:U3Z6FPKK

pith:2015:U3Z6FPKKIGP74WLKKJ544ABIHS

not attested not anchored not stored refs pending

On the formation and evolution of the first Be star in a black hole binary MWC 656

A. Herrero, I. Negueruela, I. Ribas, J. Casares, J.M. Paredes, J. Ziolkowski, K. Belczynski, M. Benacquista, M. Grudzinska, M. Ribo, S.E. de Mink

arxiv:1504.03146 v2 · 2015-04-13 · astro-ph.HE · 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{U3Z6FPKKIGP74WLKKJ544ABIHS}

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	2026-05-18T01:35:48.560072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6f3e2bd4a419ffe596a527bce00283c8bc773779225e453eeb506c53fbe36fc

Aliases

arxiv: 1504.03146 · arxiv_version: 1504.03146v2 · doi: 10.48550/arxiv.1504.03146 · pith_short_12: U3Z6FPKKIGP7 · pith_short_16: U3Z6FPKKIGP74WLK · pith_short_8: U3Z6FPKK

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/U3Z6FPKKIGP74WLKKJ544ABIHS \
  | 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: a6f3e2bd4a419ffe596a527bce00283c8bc773779225e453eeb506c53fbe36fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "351cdf4b4936220daa89679fbacce22ad02bd7f43daf5debeccc05e83af495e1",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-04-13T11:57:13Z",
    "title_canon_sha256": "bd9bc72ea07244292ba2ece45d59414bd01fe964caffe97607ea88fd4690cbf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03146",
    "kind": "arxiv",
    "version": 2
  }
}