Pith Number

pith:OJ5PBQWW

pith:2013:OJ5PBQWWMDG6XCJ56STXOHAISV

not attested not anchored not stored refs pending

Long-term monitoring of Sgr A* at 7 mm with VERA and KaVA

Bong Won Sohn, Kazunori Akiyama, Mareki Honma, Motoki Kino, Sang Sung Lee, Sascha Trippe

arxiv:1311.5852 v1 · 2013-11-22 · astro-ph.GA · 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{OJ5PBQWWMDG6XCJ56STXOHAISV}

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	2026-05-18T01:46:06.879249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

727af0c2d660cdeb893df4a7771c08957670ff61df2ed921e3d22aecdb3da18b

Aliases

arxiv: 1311.5852 · arxiv_version: 1311.5852v1 · doi: 10.48550/arxiv.1311.5852 · pith_short_12: OJ5PBQWWMDG6 · pith_short_16: OJ5PBQWWMDG6XCJ5 · pith_short_8: OJ5PBQWW

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/OJ5PBQWWMDG6XCJ56STXOHAISV \
  | 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: 727af0c2d660cdeb893df4a7771c08957670ff61df2ed921e3d22aecdb3da18b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8622ef71d3a38ded2a2be9d15db961060a2454cb920a5a9f89a84107c15a64a0",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-11-22T19:43:49Z",
    "title_canon_sha256": "fe679c1f4b6fa26a501c6ea725dd7bc587efd1a7b2ef505871fecb7ce887b169"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5852",
    "kind": "arxiv",
    "version": 1
  }
}