Pith Number

pith:4R6KTIDH

pith:2017:4R6KTIDH32E5E44US5ORARSIXN

not attested not anchored not stored refs pending

NuSTAR Hard X-ray Observations of the Energetic Millisecond Pulsars PSR B1821-24, PSR B1937+21, and PSR J0218+4232

E. V. Gotthelf (1), S. Bogdanov (1) ((1) Columbia University)

arxiv:1704.02964 v3 · 2017-04-10 · 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{4R6KTIDH32E5E44US5ORARSIXN}

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	2026-05-18T00:36:32.105828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e47ca9a067de89d27394975d104648bb44d1b006c4b7a3e9e37a15dcd4ba22a5

Aliases

arxiv: 1704.02964 · arxiv_version: 1704.02964v3 · doi: 10.48550/arxiv.1704.02964 · pith_short_12: 4R6KTIDH32E5 · pith_short_16: 4R6KTIDH32E5E44U · pith_short_8: 4R6KTIDH

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/4R6KTIDH32E5E44US5ORARSIXN \
  | 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: e47ca9a067de89d27394975d104648bb44d1b006c4b7a3e9e37a15dcd4ba22a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d0151fa3e9e89892fb5afa442075d8b5b8238975e97d54f17fa1a09e5fae053",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-04-10T17:40:51Z",
    "title_canon_sha256": "fcedfd25c1175a5f761a6a3e68481a7218d78515391e6a86e64c3a95e722ade8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02964",
    "kind": "arxiv",
    "version": 3
  }
}