Pith Number

pith:EVSGWYYX

pith:2013:EVSGWYYXYIN2QMBQXDBMQBLF3G

not attested not anchored not stored refs pending

Classical aspects of Hawking radiation verified in analogue gravity experiment

Edmund W. Tedford, Gregory A. Lawrence, Matthew C.J. Penrice, Silke Weinfurtner, William G. Unruh

arxiv:1302.0375 v1 · 2013-02-02 · 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{EVSGWYYXYIN2QMBQXDBMQBLF3G}

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	2026-05-18T01:51:51.158785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25646b6317c21ba83030b8c2c80565d9a4c5a2a89c7a723b8f4ae35356f1a8f8

Aliases

arxiv: 1302.0375 · arxiv_version: 1302.0375v1 · doi: 10.48550/arxiv.1302.0375 · pith_short_12: EVSGWYYXYIN2 · pith_short_16: EVSGWYYXYIN2QMBQ · pith_short_8: EVSGWYYX

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/EVSGWYYXYIN2QMBQXDBMQBLF3G \
  | 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: 25646b6317c21ba83030b8c2c80565d9a4c5a2a89c7a723b8f4ae35356f1a8f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c0324d46ba4417fba7c946b3190df4009c223ad6b2d3791428866135a558c6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-02-02T13:24:09Z",
    "title_canon_sha256": "f80d653c2f2d03fe45ed0f48f451f289324859d7ab1b82a0dbf386e20db241f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.0375",
    "kind": "arxiv",
    "version": 1
  }
}