Pith Number

pith:34PCSFDX

pith:2013:34PCSFDX3FIAIOIONTPGJ6TNBR

not attested not anchored not stored refs pending

A Novel Type of Very Long Baseline Astronomical Intensity Interferometer

Ermanno F. Borra

arxiv:1309.5617 v1 · 2013-09-22 · 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{34PCSFDX3FIAIOIONTPGJ6TNBR}

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	2026-05-18T03:12:35.767399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df1e291477d95004390e6cde64fa6d0c7db8f83c99b9b16afe5dd88d0360c6ac

Aliases

arxiv: 1309.5617 · arxiv_version: 1309.5617v1 · doi: 10.48550/arxiv.1309.5617 · pith_short_12: 34PCSFDX3FIA · pith_short_16: 34PCSFDX3FIAIOIO · pith_short_8: 34PCSFDX

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/34PCSFDX3FIAIOIONTPGJ6TNBR \
  | 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: df1e291477d95004390e6cde64fa6d0c7db8f83c99b9b16afe5dd88d0360c6ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "554af709b437a6977e0b6838d05e770890b012b672e2007216e74abf1a923191",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-09-22T16:43:19Z",
    "title_canon_sha256": "d0a5b0df66789b629c722a012668a83292029e8d0bb19d256e5c73d95c12a55c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5617",
    "kind": "arxiv",
    "version": 1
  }
}