Pith Number

pith:ACANKE7H

pith:2021:ACANKE7HSCIPEY3B24ZSCXUMH4

not attested not anchored not stored refs pending

A revised view of the linear polarization in the subparsec core of M87 at 7 mm

Evgeniya V. Kravchenko, Hung-Yi Pu, Jongho Park, Kazuhiro Hada, Keiichi Asada, Marcello Giroletti, Masanori Nakamura, Motoki Kino

arxiv:2107.13243 v2 · 2021-07-28 · 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{ACANKE7HSCIPEY3B24ZSCXUMH4}

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	2026-07-05T03:38:25.806868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0080d513e79090f26361d733215e8c3f2a81caa655f2f6aee5fe0d6be8d1294a

Aliases

arxiv: 2107.13243 · arxiv_version: 2107.13243v2 · doi: 10.48550/arxiv.2107.13243 · pith_short_12: ACANKE7HSCIP · pith_short_16: ACANKE7HSCIPEY3B · pith_short_8: ACANKE7H

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/ACANKE7HSCIPEY3B24ZSCXUMH4 \
  | 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: 0080d513e79090f26361d733215e8c3f2a81caa655f2f6aee5fe0d6be8d1294a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87884deaa3de0f49c86990fd3ef6e7fd4bdfb3a4bc1bf6d8020b132be22c79ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-07-28T09:56:19Z",
    "title_canon_sha256": "8baab5699d0adcd27e52497c262ac343e0d6110eab86528864022e63bb2e0954"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.13243",
    "kind": "arxiv",
    "version": 2
  }
}