Pith Number

pith:MYF3IGGH

pith:2022:MYF3IGGHOZODGD75GUNLE2QXOC

not attested not anchored not stored refs pending

The jet and resolved features of the central supermassive black hole of M 87 observed with EHT

Junichiro Makino, Makoto Miyoshi, Yoshiaki Kato

arxiv:2205.04623 v4 · 2022-05-10 · 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{MYF3IGGHOZODGD75GUNLE2QXOC}

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	2026-07-05T04:37:37.674166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

660bb418c7765c330ffd351ab26a177084559ddca49d9956b1c024a454e12a4a

Aliases

arxiv: 2205.04623 · arxiv_version: 2205.04623v4 · doi: 10.48550/arxiv.2205.04623 · pith_short_12: MYF3IGGHOZOD · pith_short_16: MYF3IGGHOZODGD75 · pith_short_8: MYF3IGGH

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/MYF3IGGHOZODGD75GUNLE2QXOC \
  | 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: 660bb418c7765c330ffd351ab26a177084559ddca49d9956b1c024a454e12a4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f1449d9544025d25d7c1f82df35fb502b8e00db9232b6326749a9ce3d8407b4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-05-10T01:56:43Z",
    "title_canon_sha256": "bf3bc4eb8d6bb68ba65d5eb4c5fe45ec37bbaf0154ce91eff81469e63fb436ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.04623",
    "kind": "arxiv",
    "version": 4
  }
}