Pith Number

pith:4CMY777X

pith:2017:4CMY777XXFE7S2RT2EVIT4JHSV

not attested not anchored not stored refs pending

Glimpses of the past activity of Sgr A* inferred from X-ray echoes in Sgr C

Andrea Goldwurm, Dimitri Chuard, Gabriele Ponti, Ma\"ica Clavel, Maria Chernyakova, Mark R. Morris, Michael Walls, R\'egis Terrier, Simona Soldi

arxiv:1712.02678 v1 · 2017-12-07 · 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{4CMY777XXFE7S2RT2EVIT4JHSV}

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	2026-05-18T00:22:23.687252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0998ffff7b949f96a33d12a89f127957a7423fd4ce9afee633f5f31bfc4c488

Aliases

arxiv: 1712.02678 · arxiv_version: 1712.02678v1 · doi: 10.48550/arxiv.1712.02678 · pith_short_12: 4CMY777XXFE7 · pith_short_16: 4CMY777XXFE7S2RT · pith_short_8: 4CMY777X

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/4CMY777XXFE7S2RT2EVIT4JHSV \
  | 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: e0998ffff7b949f96a33d12a89f127957a7423fd4ce9afee633f5f31bfc4c488

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb4ddc0fcbe597ccb0c1795f1d2b49ee6605675f5ef75976e4d79daeb1c7fae8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-12-07T15:43:33Z",
    "title_canon_sha256": "dcd7371fb26c8ebde95e5070cae5128f34dbdb9cbe770763b8cc67f9730dfe7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02678",
    "kind": "arxiv",
    "version": 1
  }
}