Pith Number

pith:4YQQYVTQ

pith:2006:4YQQYVTQU5U4T7RJK2QJR2T5OQ

not attested not anchored not stored refs pending

Theoretical Isochrones with Extinction in the K Band. II. J - K versus K

Donald F. Figer, Myung Gyoon Lee, Sungsoo S. Kim

arxiv:astro-ph/0601470 v1 · 2006-01-20 · 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{4YQQYVTQU5U4T7RJK2QJR2T5OQ}

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	2026-05-18T04:36:29.440630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6210c5670a769c9fe2956a098ea7d740c6fc61df6658f6c59721ba949a6bc18

Aliases

arxiv: astro-ph/0601470 · arxiv_version: astro-ph/0601470v1 · doi: 10.48550/arxiv.astro-ph/0601470 · pith_short_12: 4YQQYVTQU5U4 · pith_short_16: 4YQQYVTQU5U4T7RJ · pith_short_8: 4YQQYVTQ

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/4YQQYVTQU5U4T7RJK2QJR2T5OQ \
  | 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: e6210c5670a769c9fe2956a098ea7d740c6fc61df6658f6c59721ba949a6bc18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a8606618f6ce5afc7e443ee41c13d60b45e5582047d2f3fec06a9beefed382b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-01-20T05:43:39Z",
    "title_canon_sha256": "ce0bc84b1705f4614ccfb8877489478e5427f0d63f3a8048fbd0b8cfc560818d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0601470",
    "kind": "arxiv",
    "version": 1
  }
}