Pith Number

pith:IK7GLZSY

pith:2012:IK7GLZSY7DR3ZBCIOPC47NWKNQ

not attested not anchored not stored refs pending

New isolated planetary mass objects and the stellar and substellar mass function of the sigma Orionis cluster

E.L. Mart\'in, K. Pe\~na Ram\'irez, M.G. Petr-Gotzens, M.R. Zapatero Osorio, V.J.S. B\'ejar

arxiv:1205.4950 v1 · 2012-05-20 · 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{IK7GLZSY7DR3ZBCIOPC47NWKNQ}

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	2026-05-18T01:57:24.441825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42be65e658f8e3bc844873c5cfb6ca6c0f70b106678b1e46cbb237ca271aeefd

Aliases

arxiv: 1205.4950 · arxiv_version: 1205.4950v1 · doi: 10.48550/arxiv.1205.4950 · pith_short_12: IK7GLZSY7DR3 · pith_short_16: IK7GLZSY7DR3ZBCI · pith_short_8: IK7GLZSY

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/IK7GLZSY7DR3ZBCIOPC47NWKNQ \
  | 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: 42be65e658f8e3bc844873c5cfb6ca6c0f70b106678b1e46cbb237ca271aeefd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c512da1a1370ab4fd4264450ebb1b6b7161dfb4901a312047434050775d213e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-05-20T18:10:03Z",
    "title_canon_sha256": "85188f3df8851072f35f764e1825218acb39cec069b6c7552d941490b57e1a35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4950",
    "kind": "arxiv",
    "version": 1
  }
}