Pith Number

pith:E7EX4PPM

pith:2013:E7EX4PPMPQGBCD2RB3VAZNWXYL

not attested not anchored not stored refs pending

Signatures of an Encounter Between the G2 Cloud and a Jet from Sgr A*

F. Yusef-Zadeh, M. Wardle

arxiv:1303.3969 v2 · 2013-03-16 · 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{E7EX4PPMPQGBCD2RB3VAZNWXYL}

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	2026-05-18T01:51:01.595955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27c97e3dec7c0c110f510eea0cb6d7c2f560abca06e906d77cb804d20ebf6528

Aliases

arxiv: 1303.3969 · arxiv_version: 1303.3969v2 · doi: 10.48550/arxiv.1303.3969 · pith_short_12: E7EX4PPMPQGB · pith_short_16: E7EX4PPMPQGBCD2R · pith_short_8: E7EX4PPM

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/E7EX4PPMPQGBCD2RB3VAZNWXYL \
  | 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: 27c97e3dec7c0c110f510eea0cb6d7c2f560abca06e906d77cb804d20ebf6528

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed8a131ed9e612346b98b5b2613547e8ac84b002036551926f7e7a218eef6ad2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-03-16T11:57:19Z",
    "title_canon_sha256": "480f0a8059eed363153ca8f4e672ef4a298db6a36adda9e5b9c3cb5d51207389"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3969",
    "kind": "arxiv",
    "version": 2
  }
}