Pith Number

pith:2PMMXI2W

pith:2009:2PMMXI2W46MALLCIJCQLHQTZZ5

not attested not anchored not stored refs pending

Solar analogues in open clusters: The case of M67

((1) INAF - Catania Astrophysical Observatory, 2), (2) ESO - European Southern Observatory, (3) GEPI, 4), (4) INAF - Trieste Astronomical Observatory, (5) INAF - Arcetri Astrophysical Observatory, (6) Space Telescope Science Institute), K. Biazzo (1, L. Pasquini (2), L. R. Bedin (6), Observatoire de Paris, P. Bonifacio (3, S. Randich (5)

arxiv:0901.3943 v1 · 2009-01-26 · 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{2PMMXI2W46MALLCIJCQLHQTZZ5}

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	2026-05-18T02:14:55.918312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3d8cba356e79805ac4848a0b3c279cf7fba884f3bb2a3a70133838965d5170f

Aliases

arxiv: 0901.3943 · arxiv_version: 0901.3943v1 · doi: 10.48550/arxiv.0901.3943 · pith_short_12: 2PMMXI2W46MA · pith_short_16: 2PMMXI2W46MALLCI · pith_short_8: 2PMMXI2W

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/2PMMXI2W46MALLCIJCQLHQTZZ5 \
  | 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: d3d8cba356e79805ac4848a0b3c279cf7fba884f3bb2a3a70133838965d5170f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8783da0dbdec26ac3c32bbe266f3d315207104d7afa5cd0d98a90d146a6b54d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-26T03:34:38Z",
    "title_canon_sha256": "c35d6fe3e47a00825271e763dd1989db296c600100e2bd4e3245b07293acc9b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.3943",
    "kind": "arxiv",
    "version": 1
  }
}