Pith Number

pith:N3QS3LFR

pith:2013:N3QS3LFRV7WL2DLXK4KZFYB4MC

not attested not anchored not stored refs pending

The Ages of High Mass X-ray Binaries in NGC 2403 and NGC 300

Andrew Dolphin, Benjamin F. Williams, Breanna A. Binder, Julianne J. Dalcanton, Michael Eracleous

arxiv:1305.4933 v1 · 2013-05-21 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N3QS3LFRV7WL2DLXK4KZFYB4MC}

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	2026-05-18T01:49:48.274273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ee12dacb1afecbd0d77571592e03c60ba22861bd19137f720d6b0b54aac5031

Aliases

arxiv: 1305.4933 · arxiv_version: 1305.4933v1 · doi: 10.48550/arxiv.1305.4933 · pith_short_12: N3QS3LFRV7WL · pith_short_16: N3QS3LFRV7WL2DLX · pith_short_8: N3QS3LFR

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/N3QS3LFRV7WL2DLXK4KZFYB4MC \
  | 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: 6ee12dacb1afecbd0d77571592e03c60ba22861bd19137f720d6b0b54aac5031

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26f10d30b4e2184942a32615dd80f29bfe701c9f99daeac1d856d8f51f4ddc3b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-21T20:00:02Z",
    "title_canon_sha256": "98f43fea908e24ea3482864cf30ee3d0ab3bab49e8b00189c262d7f78e8943c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4933",
    "kind": "arxiv",
    "version": 1
  }
}