Pith Number

pith:2JRJDPFJ

pith:2019:2JRJDPFJN7CXGMUXY7YT2OU5TR

not attested not anchored not stored refs pending

Testing the Weak Equivalence Principle with Cosmological Gamma Ray Bursts

Matipon Tangmatitham, Robert J. Nemiroff

arxiv:1903.05688 v1 · 2019-03-13 · astro-ph.CO · 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{2JRJDPFJN7CXGMUXY7YT2OU5TR}

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	2026-05-17T23:51:16.538166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d26291bca96fc5733297c7f13d3a9d9c42a38e77d505f63118bc5f4f7331275b

Aliases

arxiv: 1903.05688 · arxiv_version: 1903.05688v1 · doi: 10.48550/arxiv.1903.05688 · pith_short_12: 2JRJDPFJN7CX · pith_short_16: 2JRJDPFJN7CXGMUX · pith_short_8: 2JRJDPFJ

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/2JRJDPFJN7CXGMUXY7YT2OU5TR \
  | 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: d26291bca96fc5733297c7f13d3a9d9c42a38e77d505f63118bc5f4f7331275b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5384bccf19569542f06752f91e595d05bbab715fb3e19bce614a410581478f08",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-03-13T19:13:50Z",
    "title_canon_sha256": "8afd91faff04f2edfafb2821eacb52b7c3d97fa61aeda86fa1c507f9c217f16c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05688",
    "kind": "arxiv",
    "version": 1
  }
}