Pith Number

pith:YT6SDGHX

pith:2012:YT6SDGHXBTDVV4WE4FFENWRWCH

not attested not anchored not stored refs pending

The Spectral Evolution of Convective Mixing White Dwarfs, the non-DA Gap, and White Dwarf Cosmochronology

Brad M. S. Hansen, Eugene Y. Chen

arxiv:1205.7068 v1 · 2012-05-31 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YT6SDGHXBTDVV4WE4FFENWRWCH}

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	2026-05-18T01:57:09.192829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4fd2198f70cc75af2c4e14a46da3611fb147ebc34961db72ac408c437c63334

Aliases

arxiv: 1205.7068 · arxiv_version: 1205.7068v1 · doi: 10.48550/arxiv.1205.7068 · pith_short_12: YT6SDGHXBTDV · pith_short_16: YT6SDGHXBTDVV4WE · pith_short_8: YT6SDGHX

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/YT6SDGHXBTDVV4WE4FFENWRWCH \
  | 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: c4fd2198f70cc75af2c4e14a46da3611fb147ebc34961db72ac408c437c63334

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d665a115915801e1976b1c26c8beb922b4207fc32a620fd282832a26c2e53340",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-05-31T18:47:47Z",
    "title_canon_sha256": "3351deb54676ac25d3797e16df448a693f78ee3681df3771e11b1e5b83ebd56d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.7068",
    "kind": "arxiv",
    "version": 1
  }
}