Pith Number

pith:BHN3JP5I

pith:2009:BHN3JP5IDD2LY6XF2L5KWRD73Y

not attested not anchored not stored refs pending

Black-hole binaries: life begins at 40 keV

Sara Motta (Univ. Insubria & INAF-OAB), Tomaso M. Belloni (INAF-OAB)

arxiv:0908.3077 v1 · 2009-08-21 · 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{BHN3JP5IDD2LY6XF2L5KWRD73Y}

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	2026-05-18T02:12:24.345951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09dbb4bfa818f4bc7ae5d2faab447fde2f00a05e4b12c3e1709444dddc6b2c0d

Aliases

arxiv: 0908.3077 · arxiv_version: 0908.3077v1 · doi: 10.48550/arxiv.0908.3077 · pith_short_12: BHN3JP5IDD2L · pith_short_16: BHN3JP5IDD2LY6XF · pith_short_8: BHN3JP5I

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/BHN3JP5IDD2LY6XF2L5KWRD73Y \
  | 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: 09dbb4bfa818f4bc7ae5d2faab447fde2f00a05e4b12c3e1709444dddc6b2c0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f494f0f39e219f86eb3751cd3891072ff7c572259dc3a53c7ef069407386506",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-08-21T09:09:06Z",
    "title_canon_sha256": "086ed5bb588bdb9aabcd37c01467debb8ec29310150d6a2588e77e66794342e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3077",
    "kind": "arxiv",
    "version": 1
  }
}