Pith Number

pith:F3I2D5E4

pith:2021:F3I2D5E4EYJIHD3PRTBDFOWWKC

not attested not anchored not stored refs pending

Signatures of extended radio emission from escaping electrons in the Lighthouse Nebula

Josep Maria Paredes, Pol Bordas, Valent\'i Bosch-Ramon, Xiying Zhang

arxiv:2109.00320 v1 · 2021-09-01 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F3I2D5E4EYJIHD3PRTBDFOWWKC}

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	2026-07-05T03:19:21.268908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ed1a1f49c2612838f6f8cc232bad650813450ec44966e5be3cacdb913dff7bd

Aliases

arxiv: 2109.00320 · arxiv_version: 2109.00320v1 · doi: 10.48550/arxiv.2109.00320 · pith_short_12: F3I2D5E4EYJI · pith_short_16: F3I2D5E4EYJIHD3P · pith_short_8: F3I2D5E4

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/F3I2D5E4EYJIHD3PRTBDFOWWKC \
  | 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: 2ed1a1f49c2612838f6f8cc232bad650813450ec44966e5be3cacdb913dff7bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49b41622284372d240cfb69ef8b96cb0d64dbf7de3545933b99a5ead566b058a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-09-01T11:55:42Z",
    "title_canon_sha256": "0f43aaed92894cd03a208a88c342e6da3ee8abce7c5929f593ea071e696980ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00320",
    "kind": "arxiv",
    "version": 1
  }
}