Pith Number

pith:MQG3GPP2

pith:2018:MQG3GPP2QCRRK67PBUCPTT3PUZ

not attested not anchored not stored refs pending

Massive, wide binaries as tracers of massive star formation

Daniel W. Griffiths, Saida M. Caballero-Nieves, Simon P. Goodwin

arxiv:1802.04560 v1 · 2018-02-13 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQG3GPP2QCRRK67PBUCPTT3PUZ}

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	2026-05-18T00:21:19.797194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

640db33dfa80a3157bef0d04f9cf6fa6508a0dfb97e3a514cfcba0943bca7ad4

Aliases

arxiv: 1802.04560 · arxiv_version: 1802.04560v1 · doi: 10.48550/arxiv.1802.04560 · pith_short_12: MQG3GPP2QCRR · pith_short_16: MQG3GPP2QCRRK67P · pith_short_8: MQG3GPP2

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/MQG3GPP2QCRRK67PBUCPTT3PUZ \
  | 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: 640db33dfa80a3157bef0d04f9cf6fa6508a0dfb97e3a514cfcba0943bca7ad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44b83552ac4a3378ec0eb66f2d4f63d45c03811b3d5fd693e6c2158a7068aca9",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-13T11:09:56Z",
    "title_canon_sha256": "ac5d860ce90241f9e3432c3cd60e89dce019d55e3aa7900e2ee14d9b662874f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04560",
    "kind": "arxiv",
    "version": 1
  }
}