Pith Number

pith:DH4Z6ZIR

pith:2006:DH4Z6ZIRWGHSN7CYNMEUYRPZPH

not attested not anchored not stored refs pending

An alternative to common envelope evolution

Andrew R. King, Graham A. Wynn, Lynnette M. Dray, Martin E. Beer

arxiv:astro-ph/0612251 v1 · 2006-12-10 · 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{DH4Z6ZIRWGHSN7CYNMEUYRPZPH}

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	2026-07-04T15:16:27.282891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19f99f6511b18f26fc586b094c45f979cf08c07147b751fd1cbf5a615dad4ce2

Aliases

arxiv: astro-ph/0612251 · arxiv_version: astro-ph/0612251v1 · doi: 10.48550/arxiv.astro-ph/0612251 · pith_short_12: DH4Z6ZIRWGHS · pith_short_16: DH4Z6ZIRWGHSN7CY · pith_short_8: DH4Z6ZIR

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/DH4Z6ZIRWGHSN7CYNMEUYRPZPH \
  | 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: 19f99f6511b18f26fc586b094c45f979cf08c07147b751fd1cbf5a615dad4ce2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bf9d7c175d6debcdece8c04d422a18b563b8bbbc239a5139dcd7f5923d5708a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-10T18:45:38Z",
    "title_canon_sha256": "9f69ec3c8cae2482c7c4d333fe2c1a44ad63c852e236904f04ff3040f4712bb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0612251",
    "kind": "arxiv",
    "version": 1
  }
}