Pith Number

pith:V75J2TO7

pith:2018:V75J2TO7SQK5WT6DUB4M75SOWX

not attested not anchored not stored refs pending

A 2-3 billion year old major merger paradigm for the Andromeda galaxy and its outskirts

F. Hammer, H. Flores, J. L. Wang, M. Puech, R. Ibata, Y. B. Yang

arxiv:1801.04279 v1 · 2018-01-12 · 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{V75J2TO7SQK5WT6DUB4M75SOWX}

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	2026-05-18T00:22:23.224125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

affa9d4ddf9415db4fc3a078cff64eb5e2d746e10c3c3d654c21f59218ede447

Aliases

arxiv: 1801.04279 · arxiv_version: 1801.04279v1 · doi: 10.48550/arxiv.1801.04279 · pith_short_12: V75J2TO7SQK5 · pith_short_16: V75J2TO7SQK5WT6D · pith_short_8: V75J2TO7

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/V75J2TO7SQK5WT6DUB4M75SOWX \
  | 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: affa9d4ddf9415db4fc3a078cff64eb5e2d746e10c3c3d654c21f59218ede447

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c52c81b420d30a3a15cfb2bf9014fd2158241a5896fc7d949f0a8b2e43fed3c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-01-12T19:00:04Z",
    "title_canon_sha256": "0f78337e0c4b4bf967ed6338343430b7ba8e00fe8ab5a5888f4a9a5efab75a24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04279",
    "kind": "arxiv",
    "version": 1
  }
}