Pith Number

pith:I6NHTUJP

pith:2011:I6NHTUJPFERHEHOFM4RJ72X3E2

not attested not anchored not stored refs pending

A dwarf nova in the globular cluster M13

A. Dieball, C. Knigge, F. Lewis, J. Grindlay, Mathieu Servillat, M. van den Berg, N. A. Webb

arxiv:1103.4638 v2 · 2011-03-23 · astro-ph.SR · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I6NHTUJPFERHEHOFM4RJ72X3E2}

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	2026-05-18T02:02:47.521057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

479a79d12f2922721dc567229feafb26827b47b249f61e3c0a4a1e5886f3607d

Aliases

arxiv: 1103.4638 · arxiv_version: 1103.4638v2 · doi: 10.48550/arxiv.1103.4638 · pith_short_12: I6NHTUJPFERH · pith_short_16: I6NHTUJPFERHEHOF · pith_short_8: I6NHTUJP

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/I6NHTUJPFERHEHOFM4RJ72X3E2 \
  | 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: 479a79d12f2922721dc567229feafb26827b47b249f61e3c0a4a1e5886f3607d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50e421459096ce754c74c641e606d12d2714f08bc96b28e4ca2bf7aceb2070e8",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-03-23T21:54:17Z",
    "title_canon_sha256": "0c97ddbd75da4e30d045b3f0c0e521470c69a5cb70fe852e5bda302ed0e51122"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4638",
    "kind": "arxiv",
    "version": 2
  }
}