Pith Number

pith:7YX4Y6PU

pith:2007:7YX4Y6PUCBOLI4SYPNGMS4KPCT

not attested not anchored not stored refs pending

X-ray Tail in NGC 7619

Dong-Woo Kim, Eunhyeuk Kim, Ginevra Trinchieri, Giuseppina Fabbiano

arxiv:0706.4254 v2 · 2007-06-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7YX4Y6PUCBOLI4SYPNGMS4KPCT}

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	2026-07-04T17:04:28.566050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe2fcc79f4105cb472587b4cc9714f14d10830c2b55ffc37644463c70defffa8

Aliases

arxiv: 0706.4254 · arxiv_version: 0706.4254v2 · doi: 10.48550/arxiv.0706.4254 · pith_short_12: 7YX4Y6PUCBOL · pith_short_16: 7YX4Y6PUCBOLI4SY · pith_short_8: 7YX4Y6PU

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/7YX4Y6PUCBOLI4SYPNGMS4KPCT \
  | 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: fe2fcc79f4105cb472587b4cc9714f14d10830c2b55ffc37644463c70defffa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52f5aa0ba0141559e0c0a2ce163119dab232d969d015e741d0090e31ec043de2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-06-28T15:23:39Z",
    "title_canon_sha256": "7ee3719bf717b291a503d4c583d63ed1d8c1006b7248ed908484a5cf1838b2db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.4254",
    "kind": "arxiv",
    "version": 2
  }
}