Pith Number

pith:IBHBHTXX

pith:2010:IBHBHTXXA4NMEB7XQVQXJXYUBB

not attested not anchored not stored refs pending

VLT-MAD observations of the core of 30 Doradus

A. D. Mackey, A. J. Longmore, C. J. Evans, J. Alves, J. Ascenso, M. A. Campbell (IfA, M. Gieles, N. Bastian, University of Edinburgh)

arxiv:1002.0288 v2 · 2010-02-01 · astro-ph.SR · 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{IBHBHTXXA4NMEB7XQVQXJXYUBB}

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	2026-05-18T02:09:21.412157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

404e13cef7071ac207f7856174df140868c39d6d40e2e1de41f87d90d688fa38

Aliases

arxiv: 1002.0288 · arxiv_version: 1002.0288v2 · doi: 10.48550/arxiv.1002.0288 · pith_short_12: IBHBHTXXA4NM · pith_short_16: IBHBHTXXA4NMEB7X · pith_short_8: IBHBHTXX

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/IBHBHTXXA4NMEB7XQVQXJXYUBB \
  | 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: 404e13cef7071ac207f7856174df140868c39d6d40e2e1de41f87d90d688fa38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30a84c15deff09440be17d6274ea1145fc733ee0f202c9d8b70ee10ed26daf2a",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-02-01T19:01:25Z",
    "title_canon_sha256": "b0282cb3dbf30a9e6fe827c8e24d61d27ffc97939ee178586ba044c04264a07d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.0288",
    "kind": "arxiv",
    "version": 2
  }
}