Pith Number

pith:BZCM4TV6

pith:2010:BZCM4TV6NC6TKITMSL4NLNLQNQ

not attested not anchored not stored refs pending

Age and helium content of the open cluster NGC 6791 from multiple eclipsing binary members. I. Measurements, methods, and first results

D. A. VandenBerg, F. Grundahl, H. Bruntt, J. V. Clausen, K. Brogaard, L. R. Bedin, S. Frandsen

arxiv:1009.5537 v1 · 2010-09-28 · 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{BZCM4TV6NC6TKITMSL4NLNLQNQ}

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	2026-05-18T02:05:16.228093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e44ce4ebe68bd35226c92f8d5b5706c230b68d8c5a24ae601c7ccfd6215b56e

Aliases

arxiv: 1009.5537 · arxiv_version: 1009.5537v1 · doi: 10.48550/arxiv.1009.5537 · pith_short_12: BZCM4TV6NC6T · pith_short_16: BZCM4TV6NC6TKITM · pith_short_8: BZCM4TV6

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/BZCM4TV6NC6TKITMSL4NLNLQNQ \
  | 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: 0e44ce4ebe68bd35226c92f8d5b5706c230b68d8c5a24ae601c7ccfd6215b56e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba03e58a1ad823811b5d71a151504ccc6b4899aad205451023b92dda0bbb7cca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-09-28T11:48:31Z",
    "title_canon_sha256": "a3853a2d125c9aed180c233d879cfe212f1f94fe5dcc6c8c81dff0eaec2b7160"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.5537",
    "kind": "arxiv",
    "version": 1
  }
}