Pith Number

pith:VBHXBFBD

pith:2021:VBHXBFBDSY3N4TPMNCF54SIHKM

not attested not anchored not stored refs pending

First evidence of a collision between two unrelated open clusters in the Milky Way

Andr\'es E. Piatti, Khyati Malhan

arxiv:2112.03786 v1 · 2021-12-07 · 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{VBHXBFBDSY3N4TPMNCF54SIHKM}

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	2026-07-05T03:42:56.159899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a84f7094239636de4dec688bde49075313b3332c6386e80c028fa64e23d54bb6

Aliases

arxiv: 2112.03786 · arxiv_version: 2112.03786v1 · doi: 10.48550/arxiv.2112.03786 · pith_short_12: VBHXBFBDSY3N · pith_short_16: VBHXBFBDSY3N4TPM · pith_short_8: VBHXBFBD

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/VBHXBFBDSY3N4TPMNCF54SIHKM \
  | 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: a84f7094239636de4dec688bde49075313b3332c6386e80c028fa64e23d54bb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0db775937de46f88c20baa9aabb891bda2b13365f41f6db6a34f23f9557bee37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-12-07T16:00:13Z",
    "title_canon_sha256": "1dd264d0a1269b6f87b044fb2da5cf98228b523aef7c88157acaf56a371db5dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.03786",
    "kind": "arxiv",
    "version": 1
  }
}