Pith Number

pith:BMQWNZCX

pith:2011:BMQWNZCXYB7PE6KTE3CPPPC2GJ

not attested not anchored not stored refs pending

On the lifetime of discs around late type stars

Barbara Ercolano (LMU, Cambridge), Excellence Cluster), James Owen (IoA, Loredana Spezzi (ESA-ESTEC), Munich, Nate Bastian (Munich

arxiv:1105.2406 v1 · 2011-05-12 · astro-ph.GA · 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{BMQWNZCXYB7PE6KTE3CPPPC2GJ}

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	2026-05-18T02:01:59.254974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b2166e457c07ef2795326c4f7bc5a3264e7ce57ad0888162002ba9da3cc0cc3

Aliases

arxiv: 1105.2406 · arxiv_version: 1105.2406v1 · doi: 10.48550/arxiv.1105.2406 · pith_short_12: BMQWNZCXYB7P · pith_short_16: BMQWNZCXYB7PE6KT · pith_short_8: BMQWNZCX

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/BMQWNZCXYB7PE6KTE3CPPPC2GJ \
  | 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: 0b2166e457c07ef2795326c4f7bc5a3264e7ce57ad0888162002ba9da3cc0cc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bfc52167be0c4a2f7b345d79d76afdc2a9042d3ca64f4d4b68dd8184faafe6d",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-05-12T09:04:13Z",
    "title_canon_sha256": "897b993cebe1e8060bc6517f9e79752fe343bdba9c49e118f9c316f362c802cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2406",
    "kind": "arxiv",
    "version": 1
  }
}