Pith Number

pith:2U77BGHW

pith:2014:2U77BGHWYA5JAYRCUI3RDNA3D6

not attested not anchored not stored refs pending

Black hole spin down in GRB observations and Cosmology

Antonios Nathanail, Ioannis Contopoulos, Spyros Basilakos

arxiv:1407.6550 v3 · 2014-07-24 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2U77BGHWYA5JAYRCUI3RDNA3D6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:25:49.106426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d53ff098f6c03a906222a23711b41b1f9e4c6f2d8956c4ab2f0cb46cd10d8235

Aliases

arxiv: 1407.6550 · arxiv_version: 1407.6550v3 · doi: 10.48550/arxiv.1407.6550 · pith_short_12: 2U77BGHWYA5J · pith_short_16: 2U77BGHWYA5JAYRC · pith_short_8: 2U77BGHW

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/2U77BGHWYA5JAYRCUI3RDNA3D6 \
  | 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: d53ff098f6c03a906222a23711b41b1f9e4c6f2d8956c4ab2f0cb46cd10d8235

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "352cfb0a7e3194d1e95f71acd758c2e646e8141a3a152085752915e3e5731600",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-07-24T12:40:08Z",
    "title_canon_sha256": "9124e95a4b091303ba87b8a210000d6b169f167440f2e07eb4ac32fe8bc253ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.6550",
    "kind": "arxiv",
    "version": 3
  }
}