Pith Number

pith:2WSIE4GR

pith:2015:2WSIE4GRCN3XU2M3GYFH3TM5KO

not attested not anchored not stored refs pending

A Measurement of the Black-Hole Mass in NGC 1097 using ALMA

2), (2) National Astronomical Observatory of Japan), Kartik Sheth, Kotaro Kohno ((1) SOKENDAI (The Graduate University for Advanced Studies), Kyoko Onishi (1, Satoru Iguchi

arxiv:1506.05917 v1 · 2015-06-19 · 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{2WSIE4GRCN3XU2M3GYFH3TM5KO}

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	2026-05-18T01:42:46.862081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5a48270d113777a699b360a7dcd9d53a53f1e44afa3a315a1ee891487dac04a

Aliases

arxiv: 1506.05917 · arxiv_version: 1506.05917v1 · doi: 10.48550/arxiv.1506.05917 · pith_short_12: 2WSIE4GRCN3X · pith_short_16: 2WSIE4GRCN3XU2M3 · pith_short_8: 2WSIE4GR

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/2WSIE4GRCN3XU2M3GYFH3TM5KO \
  | 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: d5a48270d113777a699b360a7dcd9d53a53f1e44afa3a315a1ee891487dac04a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf3b64b2c5268bb27e31d4798cecb1505374d1d815b97b637105448455f77ee1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-06-19T08:52:25Z",
    "title_canon_sha256": "078aa41639c2d00d373d8759edfbd15bf7d2aa61a7ddc0ea6a03f782071f1def"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.05917",
    "kind": "arxiv",
    "version": 1
  }
}