Pith Number

pith:6BDDKQAB

pith:2019:6BDDKQABOUCJX25TCKWTZH6IYE

not attested not anchored not stored refs pending

X-ray Photons in the CO 2-1 'Lacuna' of NGC 2110

A. Paggi, G. Fabbiano, M. Elvis

arxiv:1904.02197 v2 · 2019-04-03 · astro-ph.GA · 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{6BDDKQABOUCJX25TCKWTZH6IYE}

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	2026-05-17T23:46:11.872940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f04635400175049bebb312ad3c9fc8c106170cddc54c757811e5799c3b1801ec

Aliases

arxiv: 1904.02197 · arxiv_version: 1904.02197v2 · doi: 10.48550/arxiv.1904.02197 · pith_short_12: 6BDDKQABOUCJ · pith_short_16: 6BDDKQABOUCJX25T · pith_short_8: 6BDDKQAB

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/6BDDKQABOUCJX25TCKWTZH6IYE \
  | 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: f04635400175049bebb312ad3c9fc8c106170cddc54c757811e5799c3b1801ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "661793d14e68aa9c3fe19747e2a73a1628d98944d4797fce79c7f7d7ced3580a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-03T18:46:18Z",
    "title_canon_sha256": "a11cb73345f382bb39186cbdd74ba35e570ee1929b2a828287140e7a098143d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02197",
    "kind": "arxiv",
    "version": 2
  }
}