Pith Number

pith:NKA2QWBD

pith:2009:NKA2QWBDKAXLET3SA4Q4LYDHBK

not attested not anchored not stored refs pending

A time-dependent jet model for the emission from Sagittarius A*

2), (2) Univ. of Michigan, (3) Radboud University, 4) ((1) Univ. of Amsterdam, (4) ASTRON), Dipankar Maitra (1, Heino Falcke (3, Nijmegen, Sera Markoff (1)

arxiv:0911.0739 v1 · 2009-11-04 · 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{NKA2QWBDKAXLET3SA4Q4LYDHBK}

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	2026-05-18T02:10:59.906626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a81a85823502eb24f720721c5e0670aa93ae02815ff9eba2ae8ff94be7f57a8

Aliases

arxiv: 0911.0739 · arxiv_version: 0911.0739v1 · doi: 10.48550/arxiv.0911.0739 · pith_short_12: NKA2QWBDKAXL · pith_short_16: NKA2QWBDKAXLET3S · pith_short_8: NKA2QWBD

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/NKA2QWBDKAXLET3SA4Q4LYDHBK \
  | 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: 6a81a85823502eb24f720721c5e0670aa93ae02815ff9eba2ae8ff94be7f57a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b35f31ebd5316701fc575a8416658f21697d9f0e123826b1d7e074fc8a0ee68",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-11-04T20:58:39Z",
    "title_canon_sha256": "1a342f8fd13ad8258f88c99b29bfc42742a18882a529e2ce1f6b42d2ee4dde55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0739",
    "kind": "arxiv",
    "version": 1
  }
}