Pith Number

pith:4WY57PCK

pith:2007:4WY57PCKQGAHW3RNXVOSDHXBT4

not attested not anchored not stored refs pending

Stellar Collisions in Young Clusters: Formation of (Very) Massive Stars?

Cambridge), Marc Freitag (IoA

arxiv:0711.4057 v2 · 2007-11-26 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4WY57PCKQGAHW3RNXVOSDHXBT4}

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	2026-07-04T15:10:09.293712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5b1dfbc4a81807b6e2dbd5d219ee19f3b2a74186443489a060b7c08fafd898d

Aliases

arxiv: 0711.4057 · arxiv_version: 0711.4057v2 · doi: 10.48550/arxiv.0711.4057 · pith_short_12: 4WY57PCKQGAH · pith_short_16: 4WY57PCKQGAHW3RN · pith_short_8: 4WY57PCK

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/4WY57PCKQGAHW3RNXVOSDHXBT4 \
  | 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: e5b1dfbc4a81807b6e2dbd5d219ee19f3b2a74186443489a060b7c08fafd898d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdb3793a39aa60f74b069eed03903f86310e87aadbf140280f3ea0e3acf03db9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-26T17:37:14Z",
    "title_canon_sha256": "f555406968adabbfe0aedcda7e4b9abfef51f328c1945a6e5d17bb01718f0cdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.4057",
    "kind": "arxiv",
    "version": 2
  }
}