Pith Number

pith:QEI57OXL

pith:2012:QEI57OXLQQJICK2TVCSE6CW77Y

not attested not anchored not stored refs pending

Flash Mixing on the White Dwarf Cooling Curve: Spectroscopic Confirmation in NGC 2808

Allen V. Sweigart (NASA/GSFC), Ivan Hubeny (Steward Observatory), Misty Cracraft (STScI), Thierry Lanz (OCA), Thomas M. Brown (STScI), Wayne B. Landsman (NASA/GSFC)

arxiv:1201.4070 v1 · 2012-01-19 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEI57OXLQQJICK2TVCSE6CW77Y}

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	2026-05-18T01:58:46.771712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8111dfbaeb8412812b53a8a44f0adffe211a38d55393ea86dd4b0fbf0e0cd1bb

Aliases

arxiv: 1201.4070 · arxiv_version: 1201.4070v1 · doi: 10.48550/arxiv.1201.4070 · pith_short_12: QEI57OXLQQJI · pith_short_16: QEI57OXLQQJICK2T · pith_short_8: QEI57OXL

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/QEI57OXLQQJICK2TVCSE6CW77Y \
  | 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: 8111dfbaeb8412812b53a8a44f0adffe211a38d55393ea86dd4b0fbf0e0cd1bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c23401f45f612b611e830822f239f89c2122bc6f7948457f25002b31bc56b33",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-19T14:46:50Z",
    "title_canon_sha256": "7d72147e997eb488f00457a503fd712dc25706a7fbd07ac77d7ef5caf10f9c15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4070",
    "kind": "arxiv",
    "version": 1
  }
}