Pith Number

pith:QBWJYKRZ

pith:2015:QBWJYKRZXXTEL4R3AWSVNWIK5U

not attested not anchored not stored refs pending

Hubble Space Telescope observations of the Kepler-field cluster NGC 6819. I. The bottom of the white dwarf cooling sequence

(2) J.M.Univ.Liverpool, (3) STScI, (4) INAF-OATE, (5) RSAA-ANU-MSO, (6) Univ.PD, (7) Univ. of Washington Seattle, (8) Univ. of Montreal), A. P. Milone (5), G. Piotto (6), I. R. King (7), J. Anderson (3), L. R. Bedin (1), M. Salaris (2), P. Bergeron (8). ((1) INAF-OAPD, S. Cassisi (4)

arxiv:1501.02953 v1 · 2015-01-13 · 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{QBWJYKRZXXTEL4R3AWSVNWIK5U}

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	2026-05-18T01:41:11.379703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

806c9c2a39bde645f23b05a556d90aed283a0451d9011f45362bf17cf314b594

Aliases

arxiv: 1501.02953 · arxiv_version: 1501.02953v1 · doi: 10.48550/arxiv.1501.02953 · pith_short_12: QBWJYKRZXXTE · pith_short_16: QBWJYKRZXXTEL4R3 · pith_short_8: QBWJYKRZ

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/QBWJYKRZXXTEL4R3AWSVNWIK5U \
  | 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: 806c9c2a39bde645f23b05a556d90aed283a0451d9011f45362bf17cf314b594

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c127c4f81557d51f55691e8b7cdf91aaf45d8ec3bc1e7c1f9bf999c51b1e3f8f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-01-13T11:08:36Z",
    "title_canon_sha256": "ee255370f2d28b8a50cee0381955969600ae04de1f4f272b816c49963161d1a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02953",
    "kind": "arxiv",
    "version": 1
  }
}