Pith Number

pith:I55NPTJQ

pith:2011:I55NPTJQ2NOQ7AMKFOGNCSRWL6

not attested not anchored not stored refs pending

Spin Tilts in the Double Pulsar Reveal Supernova Spin Angular-Momentum Production

Kyle Kremer, Maxim Lyutikov, Vassiliki Kalogera, Will M. Farr

arxiv:1104.5001 v2 · 2011-04-26 · 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{I55NPTJQ2NOQ7AMKFOGNCSRWL6}

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	2026-05-18T02:02:14.585808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

477ad7cd30d35d0f818a2b8cd14a365f8fb920fedba5197261e55f4faf171df3

Aliases

arxiv: 1104.5001 · arxiv_version: 1104.5001v2 · doi: 10.48550/arxiv.1104.5001 · pith_short_12: I55NPTJQ2NOQ · pith_short_16: I55NPTJQ2NOQ7AMK · pith_short_8: I55NPTJQ

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/I55NPTJQ2NOQ7AMKFOGNCSRWL6 \
  | 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: 477ad7cd30d35d0f818a2b8cd14a365f8fb920fedba5197261e55f4faf171df3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7e7a299f238458709a34a0e8306c321409457c9b75e9e7f4a5b6e6db0d8cb9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-04-26T19:41:53Z",
    "title_canon_sha256": "22f542e576b99613eecd04810d112f7561bd9d5c960834be1298f120f38dbbf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5001",
    "kind": "arxiv",
    "version": 2
  }
}