Pith Number

pith:HXOAIJJW

pith:2010:HXOAIJJW2IXLLK4KNW5SDW5ZK7

not attested not anchored not stored refs pending

Experiments with calibrated digital sideband separating downconversion

J. Richard Fisher, Matthew A. Morgan

arxiv:1001.5422 v1 · 2010-01-29 · 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{HXOAIJJW2IXLLK4KNW5SDW5ZK7}

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	2026-05-18T02:09:22.147193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ddc042536d22eb5ab8a6dbb21dbb957c1b6682ed8ece86b5ca6c23fcbdbd100

Aliases

arxiv: 1001.5422 · arxiv_version: 1001.5422v1 · doi: 10.48550/arxiv.1001.5422 · pith_short_12: HXOAIJJW2IXL · pith_short_16: HXOAIJJW2IXLLK4K · pith_short_8: HXOAIJJW

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/HXOAIJJW2IXLLK4KNW5SDW5ZK7 \
  | 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: 3ddc042536d22eb5ab8a6dbb21dbb957c1b6682ed8ece86b5ca6c23fcbdbd100

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6392f0e255ccbdf8a83e8989483d97a825249ea3ba5f58ac498ed5d7a4f2eadd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-01-29T16:02:50Z",
    "title_canon_sha256": "5fb47322199eb38eaf09f824effd720f1c55919e56945a627297a9d6d9e45164"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.5422",
    "kind": "arxiv",
    "version": 1
  }
}