Pith Number

pith:YCZRN23Q

pith:2019:YCZRN23QSLTFBPDI4BTZLM7Y64

not attested not anchored not stored refs pending

Inflowing Gas in the Central Parsec of M81

Nick Devereux

arxiv:1906.10085 v1 · 2019-06-24 · 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{YCZRN23QSLTFBPDI4BTZLM7Y64}

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	2026-05-17T23:41:07.471099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0b316eb7092e650bc68e06795b3f8f7331ac88c7b0323dc301d855c2480446b

Aliases

arxiv: 1906.10085 · arxiv_version: 1906.10085v1 · doi: 10.48550/arxiv.1906.10085 · pith_short_12: YCZRN23QSLTF · pith_short_16: YCZRN23QSLTFBPDI · pith_short_8: YCZRN23Q

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/YCZRN23QSLTFBPDI4BTZLM7Y64 \
  | 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: c0b316eb7092e650bc68e06795b3f8f7331ac88c7b0323dc301d855c2480446b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe8f0b1565062f0980bbe46c832ed4b297638d8a594e8483dfa797ff0263b04d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-06-24T17:03:14Z",
    "title_canon_sha256": "02591338cfcb3097089a1720bf04f7202baf7c84457d267c7fd3c620b6aacbfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.10085",
    "kind": "arxiv",
    "version": 1
  }
}