Pith Number

pith:M5WT77KF

pith:2023:M5WT77KFSKXPZPSWDHLR6G7FFQ

not attested not anchored not stored refs pending

The Haystack Telescope as an Astronomical Instrument

99 Millstone Road, Colin Lonsdale (1), Ganesh Rajagopalan (1), Jens Kauffmann (1), Kazunori Akiyama (1), Lynn D. Matthews (1), MA 01886, Massachusetts Institute of Technology, Thushara G.S. Pillai (1) ((1) Haystack Observatory, USA), Vincent Fish (1), Westford

arxiv:2301.02713 v1 · 2023-01-06 · 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{M5WT77KFSKXPZPSWDHLR6G7FFQ}

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	2026-07-05T05:31:20.760933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

676d3ffd4592aefcbe5619d71f1be52c2bfe4ba0b7b29293bd982b72f15881c9

Aliases

arxiv: 2301.02713 · arxiv_version: 2301.02713v1 · doi: 10.48550/arxiv.2301.02713 · pith_short_12: M5WT77KFSKXP · pith_short_16: M5WT77KFSKXPZPSW · pith_short_8: M5WT77KF

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/M5WT77KFSKXPZPSWDHLR6G7FFQ \
  | 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: 676d3ffd4592aefcbe5619d71f1be52c2bfe4ba0b7b29293bd982b72f15881c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "893bed41f8a6585ec7e93f50ba16113ab733149e273dc295980f14892d34b686",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2023-01-06T21:12:34Z",
    "title_canon_sha256": "c7db3a051d7b27f57fa2feca2ef4c01d8003daf1d9e061fe8e28fe41646f187e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.02713",
    "kind": "arxiv",
    "version": 1
  }
}