Pith Number

pith:42EUDQ5T

pith:2011:42EUDQ5TT2XKUMHCYNZ4MEBMDB

not attested not anchored not stored refs pending

Stellar dynamics around transient co-rotating spiral arms

Daisuke Kawata, Mark Cropper (MSSL, Robert J.J. Grand, UCL)

arxiv:1110.3824 v1 · 2011-10-17 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42EUDQ5TT2XKUMHCYNZ4MEBMDB}

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	2026-05-18T02:00:09.741161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68941c3b39eaeaa30e2c373c6102c187551f802c614ca265e84f8d2c97936f3

Aliases

arxiv: 1110.3824 · arxiv_version: 1110.3824v1 · doi: 10.48550/arxiv.1110.3824 · pith_short_12: 42EUDQ5TT2XK · pith_short_16: 42EUDQ5TT2XKUMHC · pith_short_8: 42EUDQ5T

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/42EUDQ5TT2XKUMHCYNZ4MEBMDB \
  | 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: e68941c3b39eaeaa30e2c373c6102c187551f802c614ca265e84f8d2c97936f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffa14ee12d8f6d44dc6a29f6b6c35dcd9f065f9ecb384a225bc9fb2776955e81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-10-17T21:03:33Z",
    "title_canon_sha256": "a4a2b2037bccc6f348fbaf656d9bbe6c66be3f4a27b659eabf0419d1419de0ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.3824",
    "kind": "arxiv",
    "version": 1
  }
}