Pith Number

pith:BSNMAYLL

pith:2009:BSNMAYLLOR5XMK2NT5UE6XW4GS

not attested not anchored not stored refs pending

The mass-metallicity gradient relation of early-type galaxies

Duncan A. Forbes, Max Spolaor, Robert N. Proctor, Warrick J. Couch

arxiv:0901.0548 v1 · 2009-01-05 · 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{BSNMAYLLOR5XMK2NT5UE6XW4GS}

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.

Cited by

1 paper in Pith

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

Receipt and verification

First computed	2026-07-04T17:14:00.291364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c9ac0616b747b762b4d9f684f5edc34891153c4049a0f93bf3b3ba27561a82d

Aliases

arxiv: 0901.0548 · arxiv_version: 0901.0548v1 · doi: 10.48550/arxiv.0901.0548 · pith_short_12: BSNMAYLLOR5X · pith_short_16: BSNMAYLLOR5XMK2N · pith_short_8: BSNMAYLL

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/BSNMAYLLOR5XMK2NT5UE6XW4GS \
  | 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: 0c9ac0616b747b762b4d9f684f5edc34891153c4049a0f93bf3b3ba27561a82d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f857a3b80b605f3127e1163570ed0b3f8c35099e9b4171b99ed647c342e5e966",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-05T21:21:17Z",
    "title_canon_sha256": "71afb94c211a54e340afb0a7882ad9cc66d25b22e61ec2f50d4ebc10d96e15e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0548",
    "kind": "arxiv",
    "version": 1
  }
}