Pith Number

pith:YCPEVG7C

pith:2007:YCPEVG7C4YKZZJ6ARZWXKW3ERY

not attested not anchored not stored refs pending

Intrinsic Axis Ratio Distribution of Early-type Galaxies From Sloan Digital Sky Survey

Sukyoung K. Yi, Taysun Kimm

arxiv:0708.2631 v1 · 2007-08-20 · 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{YCPEVG7C4YKZZJ6ARZWXKW3ERY}

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	2026-07-04T17:05:15.126565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c09e4a9be2e6159ca7c08e6d755b648e3a92c7183c2732ad5ec970756578ff2d

Aliases

arxiv: 0708.2631 · arxiv_version: 0708.2631v1 · doi: 10.48550/arxiv.0708.2631 · pith_short_12: YCPEVG7C4YKZ · pith_short_16: YCPEVG7C4YKZZJ6A · pith_short_8: YCPEVG7C

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/YCPEVG7C4YKZZJ6ARZWXKW3ERY \
  | 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: c09e4a9be2e6159ca7c08e6d755b648e3a92c7183c2732ad5ec970756578ff2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22d38c2be9a66a36c3afba4773852b51e0ddc1f259b7605f9f319b4894a2f016",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-20T11:05:43Z",
    "title_canon_sha256": "371e2ac0484933afc74248cb55181736c4b9625d05198c99715705dc4c8f3152"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.2631",
    "kind": "arxiv",
    "version": 1
  }
}