Pith Number

pith:ODN77O64

pith:2017:ODN77O64SWA352CRQCNSZSTSS4

not attested not anchored not stored refs pending

The habitability of the Milky Way during the active phase of its central supermassive black hole

Amedeo Balbi, Francesco Tombesi

arxiv:1711.11318 v1 · 2017-11-30 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ODN77O64SWA352CRQCNSZSTSS4}

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	2026-05-18T00:29:11.840997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70dbffbbdc9581bee851809b2cca72971fdd0247bf122a209456231f9ce9f78e

Aliases

arxiv: 1711.11318 · arxiv_version: 1711.11318v1 · doi: 10.48550/arxiv.1711.11318 · pith_short_12: ODN77O64SWA3 · pith_short_16: ODN77O64SWA352CR · pith_short_8: ODN77O64

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/ODN77O64SWA352CRQCNSZSTSS4 \
  | 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: 70dbffbbdc9581bee851809b2cca72971fdd0247bf122a209456231f9ce9f78e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcc8fdf1755b273d70d4f68a049a828caf7616641b617175efc0b0072ce01f92",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-11-30T11:07:29Z",
    "title_canon_sha256": "1f9baf90bf6265fd800ef507f29151562cb9bff13b52f543ba741c4a4776d227"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.11318",
    "kind": "arxiv",
    "version": 1
  }
}