Pith Number

pith:C4BHC4KY

pith:2014:C4BHC4KY5GQA2J3PH4GQSOEXPX

not attested not anchored not stored refs pending

Firewalls and flat mirrors: An alternative to the AMPS experiment which evades the Harlow-Hayden obstacle

Jonathan Oppenheim, William G. Unruh

arxiv:1401.1523 v1 · 2014-01-07 · hep-th · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4BHC4KY5GQA2J3PH4GQSOEXPX}

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	2026-05-18T01:45:33.080844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1702717158e9a00d276f3f0d0938977dc0d306bc862df28050256ac56cd3343f

Aliases

arxiv: 1401.1523 · arxiv_version: 1401.1523v1 · doi: 10.48550/arxiv.1401.1523 · pith_short_12: C4BHC4KY5GQA · pith_short_16: C4BHC4KY5GQA2J3P · pith_short_8: C4BHC4KY

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/C4BHC4KY5GQA2J3PH4GQSOEXPX \
  | 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: 1702717158e9a00d276f3f0d0938977dc0d306bc862df28050256ac56cd3343f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4af1c12f0e467af46f9aad6278ff0dc434a4c1778fbd41a0c7aeb58827d01dc7",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2014-01-07T21:56:00Z",
    "title_canon_sha256": "3407191cb6da3048d5511010c0f885a11ef9571b68e8146e63d6756b311c804c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1523",
    "kind": "arxiv",
    "version": 1
  }
}