Pith Number

pith:MPBQTQZW

pith:2010:MPBQTQZWFZ7VF6ZYDWO277N4NM

not attested not anchored not stored refs pending

Rotation Speed of the First Stars

Abraham Loeb, Athena Stacy, Volker Bromm

arxiv:1010.0997 v2 · 2010-10-05 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MPBQTQZWFZ7VF6ZYDWO277N4NM}

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	2026-05-18T02:05:10.930169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63c309c3362e7f52fb381d9daffdbc6b3ba906b58734ce93cf2cc89d92a6c538

Aliases

arxiv: 1010.0997 · arxiv_version: 1010.0997v2 · doi: 10.48550/arxiv.1010.0997 · pith_short_12: MPBQTQZWFZ7V · pith_short_16: MPBQTQZWFZ7VF6ZY · pith_short_8: MPBQTQZW

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/MPBQTQZWFZ7VF6ZYDWO277N4NM \
  | 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: 63c309c3362e7f52fb381d9daffdbc6b3ba906b58734ce93cf2cc89d92a6c538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "488ae38c548757ba2dd0c057a1ea42348e7cc34e7d957bc3706c81017d088ca8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-10-05T19:47:24Z",
    "title_canon_sha256": "05144ac45f2bfa835677dce2f606ca5b03e396e7b8cf1e5b6ead972db5cce2ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0997",
    "kind": "arxiv",
    "version": 2
  }
}