Pith Number

pith:6HV7OEHH

pith:2009:6HV7OEHHYCD6NLPXK2KUJQNQAA

not attested not anchored not stored refs pending

Major Merging: The Way to Make a Massive, Passive Galaxy

Aday R. Robaina, Arjen van der Wel, Bradford P. Holden, Eric F. Bell, Hans-Walter Rix

arxiv:0910.4018 v2 · 2009-10-21 · astro-ph.CO · 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{6HV7OEHHYCD6NLPXK2KUJQNQAA}

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	2026-05-18T02:34:13.259949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1ebf710e7c087e6adf7569544c1b0003a38d83cb02b11a4d27be280a72a7372

Aliases

arxiv: 0910.4018 · arxiv_version: 0910.4018v2 · doi: 10.48550/arxiv.0910.4018 · pith_short_12: 6HV7OEHHYCD6 · pith_short_16: 6HV7OEHHYCD6NLPX · pith_short_8: 6HV7OEHH

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/6HV7OEHHYCD6NLPXK2KUJQNQAA \
  | 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: f1ebf710e7c087e6adf7569544c1b0003a38d83cb02b11a4d27be280a72a7372

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7db8003c3778a64682c0fef9904c2473e9aedcdd870a6a0943cddeda10db99c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-21T08:37:48Z",
    "title_canon_sha256": "fc431f5529ba44016789b39fa1b1607a815e8b8f24f1fe2e5b24bd59e6cf071a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4018",
    "kind": "arxiv",
    "version": 2
  }
}