Pith Number

pith:7ICDCGVM

pith:2015:7ICDCGVMJJQZEAG3WQXJOPC2RW

not attested not anchored not stored refs pending

Probing the Spacetime Around Supermassive Black Holes with Ejected Plasma Blobs

Abraham Loeb, Pierre Christian

arxiv:1502.07365 v1 · 2015-02-25 · astro-ph.IM · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ICDCGVMJJQZEAG3WQXJOPC2RW}

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	2026-05-18T02:14:16.824097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa04311aac4a619200dbb42e973c5a8da3f3437a8a6cff0e8f13925c31d241fc

Aliases

arxiv: 1502.07365 · arxiv_version: 1502.07365v1 · doi: 10.48550/arxiv.1502.07365 · pith_short_12: 7ICDCGVMJJQZ · pith_short_16: 7ICDCGVMJJQZEAG3 · pith_short_8: 7ICDCGVM

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/7ICDCGVMJJQZEAG3WQXJOPC2RW \
  | 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: fa04311aac4a619200dbb42e973c5a8da3f3437a8a6cff0e8f13925c31d241fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8cb86c60532f9fe36c7aa846d0776394deab48b9dee14be98dd48217f773428",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-02-25T21:04:46Z",
    "title_canon_sha256": "21737caf7448985197d6970910e1684779d6beff780ba206f68e8e61b3e4505c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07365",
    "kind": "arxiv",
    "version": 1
  }
}