Pith Number

pith:DIQ4GMPI

pith:2017:DIQ4GMPIH2RARFK4WAFTB2J5YL

not attested not anchored not stored refs pending

Gravity and handedness of photons

Adrian del Rio, Ivan Agullo, Jose Navarro-Salas

arxiv:1705.07082 v1 · 2017-05-19 · 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{DIQ4GMPIH2RARFK4WAFTB2J5YL}

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	2026-05-18T00:30:04.291547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a21c331e83ea208955cb00b30e93dc2d7008aad7ac06d1febbf200e19d1dfa6

Aliases

arxiv: 1705.07082 · arxiv_version: 1705.07082v1 · doi: 10.48550/arxiv.1705.07082 · pith_short_12: DIQ4GMPIH2RA · pith_short_16: DIQ4GMPIH2RARFK4 · pith_short_8: DIQ4GMPI

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/DIQ4GMPIH2RARFK4WAFTB2J5YL \
  | 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: 1a21c331e83ea208955cb00b30e93dc2d7008aad7ac06d1febbf200e19d1dfa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c8250adbcd3b61271652c3e699fbd0b7953469eb83d19f9b0f4f17ce9aa7c35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-05-19T16:36:54Z",
    "title_canon_sha256": "82e45479bd3b043e656bea8de3848382e22063191e3c6727390e10577d9f0c5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07082",
    "kind": "arxiv",
    "version": 1
  }
}