Pith Number

pith:L4N7XBQS

pith:2025:L4N7XBQSV4TCSUUXMTMHBHIJCO

not attested not anchored not stored refs pending

Deep learning inference with the Event Horizon Telescope III. Zingularity results from the 2017 observations and predictions for future array expansions

C.-K. Chan, J. Davelaar, M. Janssen, M. Wielgus

arxiv:2506.13877 v1 · 2025-06-16 · astro-ph.HE · 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{L4N7XBQSV4TCSUUXMTMHBHIJCO}

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	2026-07-05T11:22:45.115558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f1bfb8612af2629529764d8709d0913b74b9881801f4878f24c827e2e8c60af

Aliases

arxiv: 2506.13877 · arxiv_version: 2506.13877v1 · doi: 10.48550/arxiv.2506.13877 · pith_short_12: L4N7XBQSV4TC · pith_short_16: L4N7XBQSV4TCSUUX · pith_short_8: L4N7XBQS

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/L4N7XBQSV4TCSUUXMTMHBHIJCO \
  | 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: 5f1bfb8612af2629529764d8709d0913b74b9881801f4878f24c827e2e8c60af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7413ef9aab9efe35295ceb1ce7a10fecf4011aba0d3d31059ba84f339f16926e",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-06-16T18:00:15Z",
    "title_canon_sha256": "c3e7779dd417ce9a554bec6e78cc20af3a23a07c129b166e636ce56bc0cf2716"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.13877",
    "kind": "arxiv",
    "version": 1
  }
}