Pith Number

pith:R552HE3J

pith:2018:R552HE3JJ2KMLB6FVIF56GT2WC

not attested not anchored not stored refs pending

Peering into the dark side: magnesium lines establish a massive neutron star in PSR J2215+5135

IAC), Jorge Casares (IAC, Manuel Linares (UPC, Tariq Shahbaz, ULL)

arxiv:1805.08799 v1 · 2018-05-22 · astro-ph.HE · nucl-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R552HE3JJ2KMLB6FVIF56GT2WC}

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	2026-05-18T00:15:09.403108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f7ba393694e94c587c5aa0bdf1a7ab086c310c1925b398371cc009547fa0e75

Aliases

arxiv: 1805.08799 · arxiv_version: 1805.08799v1 · doi: 10.48550/arxiv.1805.08799 · pith_short_12: R552HE3JJ2KM · pith_short_16: R552HE3JJ2KMLB6F · pith_short_8: R552HE3J

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/R552HE3JJ2KMLB6FVIF56GT2WC \
  | 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: 8f7ba393694e94c587c5aa0bdf1a7ab086c310c1925b398371cc009547fa0e75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80d7c2a83c761654625af665c2af7caf9a858a6b30adbfa5e3a6cded0cd51fe8",
    "cross_cats_sorted": [
      "nucl-ex"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-05-22T18:04:04Z",
    "title_canon_sha256": "6cb32f886d7130d569c0b26911e2bc6e378a3354904f6fec9745d958804bde5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08799",
    "kind": "arxiv",
    "version": 1
  }
}