Pith Number

pith:6BP3TLDX

pith:2011:6BP3TLDXRGK7H5YW6GPQJ5HYY4

not attested not anchored not stored refs pending

Recommendations of the Virtual Astronomical Observatory (VAO) Science Council for the VAO second year activity

A. Goodman, A. Soderberg, B. Madore, C. Brogan, D. Calzetti, E. Feigelson, G. Fabbiano, M. Postman, P. Eskridge, S. G. Djorgovski, T. Rector, Z. Ivezic

arxiv:1108.4348 v2 · 2011-08-22 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6BP3TLDXRGK7H5YW6GPQJ5HYY4}

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	2026-05-18T04:14:54.638193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f05fb9ac778995f3f716f19f04f4f8c73972e1e45392dda0cc6b12f1b11078c4

Aliases

arxiv: 1108.4348 · arxiv_version: 1108.4348v2 · doi: 10.48550/arxiv.1108.4348 · pith_short_12: 6BP3TLDXRGK7 · pith_short_16: 6BP3TLDXRGK7H5YW · pith_short_8: 6BP3TLDX

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/6BP3TLDXRGK7H5YW6GPQJ5HYY4 \
  | 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: f05fb9ac778995f3f716f19f04f4f8c73972e1e45392dda0cc6b12f1b11078c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2c1faceec411ee2dd66959fa0cce02d9173ef23f4d3356a88f48c89f5b8529c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-08-22T15:27:43Z",
    "title_canon_sha256": "0f64eef116a74a5a6fa47dc935700875cdb2de3aaf52e2383d94cf5797c40f4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4348",
    "kind": "arxiv",
    "version": 2
  }
}