Pith Number

pith:IH6ZRBV2

pith:1999:IH6ZRBV22DMOWVAFKSC6ACDYJC

not attested not anchored not stored refs pending

Do zero metal intermediate mass stars experience thermal pulses?

A. Chieffi, I. Dominguez, M. Limongi, O. Straniero

arxiv:astro-ph/9912425 v1 · 1999-12-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IH6ZRBV22DMOWVAFKSC6ACDYJC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:07:35.690464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41fd9886bad0d8eb54055485e008784890d551eeaa226a3aaa7ace2985812dff

Aliases

arxiv: astro-ph/9912425 · arxiv_version: astro-ph/9912425v1 · doi: 10.48550/arxiv.astro-ph/9912425 · pith_short_12: IH6ZRBV22DMO · pith_short_16: IH6ZRBV22DMOWVAF · pith_short_8: IH6ZRBV2

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/IH6ZRBV22DMOWVAFKSC6ACDYJC \
  | 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: 41fd9886bad0d8eb54055485e008784890d551eeaa226a3aaa7ace2985812dff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21def6511e90ba78fdf35d83c9958b0157a2b50b21d9ba5810864225ac400aa7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-20T18:01:15Z",
    "title_canon_sha256": "803b1adab828310d08e24df3df8491c75d36a363b5f81ac7eaa182f142796bc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912425",
    "kind": "arxiv",
    "version": 1
  }
}