Pith Number

pith:K2TK5TD2

pith:2021:K2TK5TD2AMQOQFCLEEOXPPHYG5

not attested not anchored not stored refs pending

Detection of a 20 minute time lag observed from Sgr A* between 8 and 10 GHz with the VLA

Farhad Yusef-Zadeh, Joseph M. Michail, Mark Wardle

arxiv:2105.11473 v1 · 2021-05-24 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K2TK5TD2AMQOQFCLEEOXPPHYG5}

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	2026-07-05T02:53:44.865636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56a6aecc7a0320e8144b211d77bcf83758ba248f955189afa457c8927bde58de

Aliases

arxiv: 2105.11473 · arxiv_version: 2105.11473v1 · doi: 10.48550/arxiv.2105.11473 · pith_short_12: K2TK5TD2AMQO · pith_short_16: K2TK5TD2AMQOQFCL · pith_short_8: K2TK5TD2

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/K2TK5TD2AMQOQFCLEEOXPPHYG5 \
  | 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: 56a6aecc7a0320e8144b211d77bcf83758ba248f955189afa457c8927bde58de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54c00eeb64a20d062a42b4ac48a1bbf0c7c4c5777102eb3624549f3f12c57edd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-05-24T18:01:07Z",
    "title_canon_sha256": "a3f8954cd02913cd3e45f9f49012e1a73911e38e0e771ef5a4af8d66a1e0f819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.11473",
    "kind": "arxiv",
    "version": 1
  }
}