Pith Number

pith:MWJFU3ED

pith:2014:MWJFU3EDCD7FFQL53GB3MAXLW3

not attested not anchored not stored refs pending

Joint XMM-Newton and Chandra Observations of the NGC 1407/1400 Complex: a Tail of an Early-Type Galaxy and a Tale of a Nearby Merging Group

Jimmy Irwin, Liyi Gu, Raymond White III, Yuanyuan Su

arxiv:1403.6416 v1 · 2014-03-25 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MWJFU3EDCD7FFQL53GB3MAXLW3}

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	2026-05-18T01:43:51.350672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65925a6c8310fe52c17dd983b602ebb6cfc14b31f384890f512f50feeddfd8b1

Aliases

arxiv: 1403.6416 · arxiv_version: 1403.6416v1 · doi: 10.48550/arxiv.1403.6416 · pith_short_12: MWJFU3EDCD7F · pith_short_16: MWJFU3EDCD7FFQL5 · pith_short_8: MWJFU3ED

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/MWJFU3EDCD7FFQL53GB3MAXLW3 \
  | 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: 65925a6c8310fe52c17dd983b602ebb6cfc14b31f384890f512f50feeddfd8b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f3a71e5cf57e92537810e6194a54d144d9db87576e1ba1fcdfcd22a2e87366b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-03-25T16:41:37Z",
    "title_canon_sha256": "a7f7971b2fcbc03943ca7755cb37dd796a102682be742120df70b8db6aeae507"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6416",
    "kind": "arxiv",
    "version": 1
  }
}