Pith Number

pith:XDD45PSH

pith:2013:XDD45PSHYSFIYTGGBTVPJ64FPX

not attested not anchored not stored refs pending

Cyclic spectroscopy of The Millisecond Pulsar, B1937+21

Mark A. Walker, Paul B. Demorest, Willem van Straten

arxiv:1310.3535 v1 · 2013-10-14 · astro-ph.HE · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDD45PSHYSFIYTGGBTVPJ64FPX}

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.

Cited by

1 paper in Pith

Exploring the Galactic plasma with pulsars in the SKA Era

Receipt and verification

First computed	2026-05-18T01:47:05.985288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8c7cebe47c48a8c4cc60ceaf4fb857dd3d065993d2e80b4bdeefb28af426230

Aliases

arxiv: 1310.3535 · arxiv_version: 1310.3535v1 · doi: 10.48550/arxiv.1310.3535 · pith_short_12: XDD45PSHYSFI · pith_short_16: XDD45PSHYSFIYTGG · pith_short_8: XDD45PSH

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/XDD45PSHYSFIYTGGBTVPJ64FPX \
  | 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: b8c7cebe47c48a8c4cc60ceaf4fb857dd3d065993d2e80b4bdeefb28af426230

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49c0b23525b6b1cf4286040ee8b85565506bda4cb0f2142c236d86a8a647317f",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-10-14T00:58:49Z",
    "title_canon_sha256": "f2dce289ea6f3bb9742ac749679da51937b688d5ecb9519a965d5cf79b5b14ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.3535",
    "kind": "arxiv",
    "version": 1
  }
}