Pith Number

pith:IPQAGCBA

pith:2015:IPQAGCBAEKJE3GP7ZHDRCPJEBY

not attested not anchored not stored refs pending

On the meaning of Painlev\'e--Gullstrand synchronization

Alfred Molina, Xavier Ja\'en

arxiv:1505.01291 v1 · 2015-05-06 · 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{IPQAGCBAEKJE3GP7ZHDRCPJEBY}

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	2026-05-18T01:25:00.591013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43e003082022924d99ffc9c7113d240e0a0097b7c9de4b5a84b94707581a1bf2

Aliases

arxiv: 1505.01291 · arxiv_version: 1505.01291v1 · doi: 10.48550/arxiv.1505.01291 · pith_short_12: IPQAGCBAEKJE · pith_short_16: IPQAGCBAEKJE3GP7 · pith_short_8: IPQAGCBA

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/IPQAGCBAEKJE3GP7ZHDRCPJEBY \
  | 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: 43e003082022924d99ffc9c7113d240e0a0097b7c9de4b5a84b94707581a1bf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d99d6a37337bd928de082e2143d9a4ef2dda318121d5c5a9c3cd7c919c30630",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-05-06T09:28:47Z",
    "title_canon_sha256": "6825e46b312c042248e900b26511d7f4ef8e487512913dd656f582c2a1bab869"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01291",
    "kind": "arxiv",
    "version": 1
  }
}