Pith Number

pith:BFPHNOQH

pith:2004:BFPHNOQHRDCQPVNXZ5IKS3343O

not attested not anchored not stored refs pending

The elliptical colour-magnitude relation as a discriminant between the monolithic and merger paradigms: the importance of progenitor bias

Ignacio Ferreras, Julien E. G. Devriendt, Sugata Kaviraj, Sukyoung K. Yi

arxiv:astro-ph/0401126 v2 · 2004-01-08 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BFPHNOQHRDCQPVNXZ5IKS3343O}

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	2026-07-04T16:42:47.358956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

095e76ba0788c507d5b7cf50a96f7cdbbc29d1cb8255c6d06414887142c203c2

Aliases

arxiv: astro-ph/0401126 · arxiv_version: astro-ph/0401126v2 · doi: 10.48550/arxiv.astro-ph/0401126 · pith_short_12: BFPHNOQHRDCQ · pith_short_16: BFPHNOQHRDCQPVNX · pith_short_8: BFPHNOQH

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/BFPHNOQHRDCQPVNXZ5IKS3343O \
  | 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: 095e76ba0788c507d5b7cf50a96f7cdbbc29d1cb8255c6d06414887142c203c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ca5e7296480488273703b4c5537c2c7b5b54bfdc889f7dc6992204692041fb9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-08T20:03:09Z",
    "title_canon_sha256": "eeab90dfbbdf0ea0fe8cece0f4a3e1bea4823fcacce4a3fa0603de02addb0e8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401126",
    "kind": "arxiv",
    "version": 2
  }
}