Pith Number

pith:BTPOQFGM

pith:2014:BTPOQFGM6GSBQ7UIR5VHU6KYU6

not attested not anchored not stored refs pending

Discovery of X-ray emission from the first Be/black hole system

J. Casares, J. M. Paredes, K. Iwasawa, M. Rib\'o, P. Munar-Adrover, V. Zabalza

arxiv:1404.0901 v1 · 2014-04-03 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTPOQFGM6GSBQ7UIR5VHU6KYU6}

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	2026-05-18T01:43:42.607393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cdee814ccf1a4187e888f6a7a7958a7b04cafabe410dddfbd43e6b79cfa9ac7

Aliases

arxiv: 1404.0901 · arxiv_version: 1404.0901v1 · doi: 10.48550/arxiv.1404.0901 · pith_short_12: BTPOQFGM6GSB · pith_short_16: BTPOQFGM6GSBQ7UI · pith_short_8: BTPOQFGM

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/BTPOQFGM6GSBQ7UIR5VHU6KYU6 \
  | 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: 0cdee814ccf1a4187e888f6a7a7958a7b04cafabe410dddfbd43e6b79cfa9ac7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6077cd616ae11cb6fcf4dd82f0e0318b8e8c9a5c3cbf327192d21a68d7f3af45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-04-03T13:24:41Z",
    "title_canon_sha256": "475c83ee02afbe09d0a93d2ecb3f148d0ea892a786b15fce07adc0012f9b37fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0901",
    "kind": "arxiv",
    "version": 1
  }
}