Pith Number

pith:MQRPHQKY

pith:2000:MQRPHQKY5RDEEK5DZTL6Q4XOPR

not attested not anchored not stored refs pending

Formation of a tidal dwarf galaxy in the interacting system Arp 245 (NGC 2992/93)

B. Pichardo, E. Brinks, I.F. Mirabel, P.-A. Duc, P. Weilbacher, V. Springel

arxiv:astro-ph/0006038 v1 · 2000-06-02 · 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{MQRPHQKY5RDEEK5DZTL6Q4XOPR}

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	2026-05-18T02:40:36.777594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6422f3c158ec46422ba3ccd7e872ee7c4590404d6810df0bb1d4e137b136ea85

Aliases

arxiv: astro-ph/0006038 · arxiv_version: astro-ph/0006038v1 · doi: 10.48550/arxiv.astro-ph/0006038 · pith_short_12: MQRPHQKY5RDE · pith_short_16: MQRPHQKY5RDEEK5D · pith_short_8: MQRPHQKY

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/MQRPHQKY5RDEEK5DZTL6Q4XOPR \
  | 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: 6422f3c158ec46422ba3ccd7e872ee7c4590404d6810df0bb1d4e137b136ea85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27430729b271bd28156c28c2b48c445cc71b6ad08c3be34abb061bd37481fde3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-02T14:26:12Z",
    "title_canon_sha256": "261f435ed5b8a03238b549b9aba2cd140a647ff516fec21e4ba6ee9290989f2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006038",
    "kind": "arxiv",
    "version": 1
  }
}