Pith Number

pith:7DRLM7PZ

pith:2017:7DRLM7PZGCUIKUCQLQFSYDGYT3

not attested not anchored not stored refs pending

Determine the Lorentz factor and the viewing angle of GRB 170817A

(2) HUJI, (3) NJU), Bin Liao (1), Fa-Yin Wang (3) ((1) HUST, Fei-Fei Wang (1), Qingwen Wu (1), Reetanjali Moharana (2), Wei Chen (1), Wei-Hua Lei (1), Yuan-Chuan Zou (1)

arxiv:1710.07436 v2 · 2017-10-20 · 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{7DRLM7PZGCUIKUCQLQFSYDGYT3}

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	2026-05-18T00:26:24.423196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8e2b67df930a88550505c0b2c0cd89ed69fd57fb0197b41a685d9745e57ba76

Aliases

arxiv: 1710.07436 · arxiv_version: 1710.07436v2 · doi: 10.48550/arxiv.1710.07436 · pith_short_12: 7DRLM7PZGCUI · pith_short_16: 7DRLM7PZGCUIKUCQ · pith_short_8: 7DRLM7PZ

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/7DRLM7PZGCUIKUCQLQFSYDGYT3 \
  | 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: f8e2b67df930a88550505c0b2c0cd89ed69fd57fb0197b41a685d9745e57ba76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82da2b7077104a256840efa3ff9be88b57b051794d98e8d9bc346e86e403769c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-10-20T07:25:59Z",
    "title_canon_sha256": "7ab3e49a5b93fa75d6655f8b4477b5aff7d118e23f15c6d185c97e3be7ce89e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07436",
    "kind": "arxiv",
    "version": 2
  }
}