Pith Number

pith:KWRYPILF

pith:2009:KWRYPILFZRDIEDL3DXJQIFVTAQ

not attested not anchored not stored refs pending

A new evolutionary scenario for the formation of massive black-hole binaries such as M33 X-7 and IC 10 X-1

M. Cantiello, N. Langer, O.R. Pols, S.-Ch Yoon, S.E. de Mink

arxiv:0910.3694 v1 · 2009-10-20 · astro-ph.SR · 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{KWRYPILFZRDIEDL3DXJQIFVTAQ}

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	2026-07-04T15:54:45.020116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55a387a165cc46820d7b1dd30416b30427ab49fa70a2b92dcc83e897b5bd0d5a

Aliases

arxiv: 0910.3694 · arxiv_version: 0910.3694v1 · doi: 10.48550/arxiv.0910.3694 · pith_short_12: KWRYPILFZRDI · pith_short_16: KWRYPILFZRDIEDL3 · pith_short_8: KWRYPILF

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/KWRYPILFZRDIEDL3DXJQIFVTAQ \
  | 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: 55a387a165cc46820d7b1dd30416b30427ab49fa70a2b92dcc83e897b5bd0d5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "965982a4864190b64b21828c60e1c6fa83866f7d63078fa81906909b2819e4da",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-20T08:07:45Z",
    "title_canon_sha256": "ec0b7754d56bc366af4443b5260ed20d9678562434e661aacf64997c49ecd597"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3694",
    "kind": "arxiv",
    "version": 1
  }
}