Pith Number

pith:FHHJGFLB

pith:2019:FHHJGFLBY52H7H2SAG4JTK5UNE

not attested not anchored not stored refs pending

A Fiber Optic Based High Voltage System for Stellar Intensity Interferometry Observations

A. Udara Abeysekara, David Kieda, Nolan Matthews, Rylee Cardon

arxiv:1908.03157 v1 · 2019-08-08 · 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{FHHJGFLBY52H7H2SAG4JTK5UNE}

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	2026-07-04T23:52:26.653672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29ce931561c7747f9f5201b899abb46910ac0bbf65757c8dc6218dda930f9a20

Aliases

arxiv: 1908.03157 · arxiv_version: 1908.03157v1 · doi: 10.48550/arxiv.1908.03157 · pith_short_12: FHHJGFLBY52H · pith_short_16: FHHJGFLBY52H7H2S · pith_short_8: FHHJGFLB

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/FHHJGFLBY52H7H2SAG4JTK5UNE \
  | 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: 29ce931561c7747f9f5201b899abb46910ac0bbf65757c8dc6218dda930f9a20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f49e42421c49fb6e929d17ab64284508d82564ce019565573bfbf28d92e9ad7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-08-08T16:35:25Z",
    "title_canon_sha256": "438acffc302db2b41fd9bb85d25a779da1ab11c304595fd82fdca2c135e35ffb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03157",
    "kind": "arxiv",
    "version": 1
  }
}