Pith Number

pith:E3T6R2K5

pith:2026:E3T6R2K5RJXG3LQKNQBL3Q6H65

not attested not anchored not stored refs pending

The Merger-Driven Origin of the Vast Extended Stellar Disc Around the Andromeda Galaxy

A. Burkert, C. Tsakonas, D. Hatzidimitriou, F. Hammer, M. Arnaboldi, O. Gerhard, Y. Yang

arxiv:2607.02480 v1 · 2026-07-02 · 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{E3T6R2K5RJXG3LQKNQBL3Q6H65}

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	2026-07-03T01:18:00.391693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26e7e8e95d8a6e6dae0a6c02bdc3c7f76e6a45c6c080278b0cfede8419be3083

Aliases

arxiv: 2607.02480 · arxiv_version: 2607.02480v1 · doi: 10.48550/arxiv.2607.02480 · pith_short_12: E3T6R2K5RJXG · pith_short_16: E3T6R2K5RJXG3LQK · pith_short_8: E3T6R2K5

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/E3T6R2K5RJXG3LQKNQBL3Q6H65 \
  | 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: 26e7e8e95d8a6e6dae0a6c02bdc3c7f76e6a45c6c080278b0cfede8419be3083

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a23bfcd2bf4b3ea6220e1dd75e72bc699e1e31c2257db6403504fc9186adfd4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-02T17:48:02Z",
    "title_canon_sha256": "d3c19f10e06d58cc4bbd71784aaae9713db58bc6f27ea988c3d45ed1e21cf15c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02480",
    "kind": "arxiv",
    "version": 1
  }
}