Pith Number

pith:E7RIT333

pith:2011:E7RIT33362Q76QJJ7VDSWKU6NN

not attested not anchored not stored refs pending

The variable Crab Nebula

Marco Tavani

arxiv:1106.0164 v2 · 2011-06-01 · 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{E7RIT33362Q76QJJ7VDSWKU6NN}

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	2026-05-18T04:20:37.430468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27e289ef7bf6a1ff4129fd472b2a9e6b4524e640f3ecd953bc3002b13a69717f

Aliases

arxiv: 1106.0164 · arxiv_version: 1106.0164v2 · doi: 10.48550/arxiv.1106.0164 · pith_short_12: E7RIT33362Q7 · pith_short_16: E7RIT33362Q76QJJ · pith_short_8: E7RIT333

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/E7RIT33362Q76QJJ7VDSWKU6NN \
  | 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: 27e289ef7bf6a1ff4129fd472b2a9e6b4524e640f3ecd953bc3002b13a69717f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63b1c403180ee10de49ec9cb1862583a27374f77a3c1dac810e764c899786806",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-06-01T13:03:52Z",
    "title_canon_sha256": "916be819d7054cca95c28c97097a0fc93456d1a345a20f9228e76acdafbe096b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.0164",
    "kind": "arxiv",
    "version": 2
  }
}