Pith Number

pith:7EAQDVFX

pith:2011:7EAQDVFXWHUX5T7O374BYVEGAC

not attested not anchored not stored refs pending

New 6cm and 11cm observations of the supernova remnant CTA 1

2), (2) MPIfR), C. Wang (1), J. L. Han (1), P. Reich (2) ((1) NAOC, W. Reich (2), X. H. Sun (1

arxiv:1108.4156 v2 · 2011-08-21 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7EAQDVFXWHUX5T7O374BYVEGAC}

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	2026-05-18T02:00:50.138562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f90101d4b7b1e97ecfeedff81c548600981d94ed97a0d99a770d66016eac1fec

Aliases

arxiv: 1108.4156 · arxiv_version: 1108.4156v2 · doi: 10.48550/arxiv.1108.4156 · pith_short_12: 7EAQDVFXWHUX · pith_short_16: 7EAQDVFXWHUX5T7O · pith_short_8: 7EAQDVFX

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/7EAQDVFXWHUX5T7O374BYVEGAC \
  | 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: f90101d4b7b1e97ecfeedff81c548600981d94ed97a0d99a770d66016eac1fec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f34286b5b68d6f7f276a5fa830a223108ed384b421a606c495d36f89ab4f3dc0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-08-21T02:13:21Z",
    "title_canon_sha256": "ea2573f7b9abd308482c9b0a35c10a3a565ee20030b3c30d385c6a034a4da500"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4156",
    "kind": "arxiv",
    "version": 2
  }
}