Pith Number

pith:N7KPBGZA

pith:1997:N7KPBGZA74UMKCRSGQDM3CP4JZ

not attested not anchored not stored refs pending

Advection-Dominated Accretion Model of Sagittarius A*: Evidence for a Black Hole at the Galactic Center

Charles Gammie (Harvard-Smithsonian Center for Astrophysics), Jonathan E. Grindlay, Ramesh Narayan, Robert G. Popham, Rohan Mahadevan

arxiv:astro-ph/9706112 v2 · 1997-06-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N7KPBGZA74UMKCRSGQDM3CP4JZ}

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.

Cited by

1 paper in Pith

Quantum signatures in black hole accretion: Pair production in dynamical magnetic fields

Receipt and verification

First computed	2026-07-04T16:03:03.494311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fd4f09b20ff28c50a323406cd89fc4e67b5afd57a77c26fc275307de40147aa

Aliases

arxiv: astro-ph/9706112 · arxiv_version: astro-ph/9706112v2 · doi: 10.48550/arxiv.astro-ph/9706112 · pith_short_12: N7KPBGZA74UM · pith_short_16: N7KPBGZA74UMKCRS · pith_short_8: N7KPBGZA

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/N7KPBGZA74UMKCRSGQDM3CP4JZ \
  | 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: 6fd4f09b20ff28c50a323406cd89fc4e67b5afd57a77c26fc275307de40147aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe8b2b14e5fe0d7a8000079d69b7c9912370f3b249b32c7cbd164e679f5dddbe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-06-11T20:15:11Z",
    "title_canon_sha256": "bf8b7b81bdcb3a07358501cd166ffa158735595fffb147ed1cd3a7f0b4297f3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9706112",
    "kind": "arxiv",
    "version": 2
  }
}