Pith Number

pith:YF6I54AV

pith:2015:YF6I54AV7ORXHMCLMDU4ZZMNJW

not attested not anchored not stored refs pending

How to Recover a Qubit That Has Fallen Into a Black Hole

Adam S. Jermyn, Aidan Chatwin-Davies, Sean M. Carroll

arxiv:1507.03592 v3 · 2015-07-13 · hep-th · gr-qc · 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{YF6I54AV7ORXHMCLMDU4ZZMNJW}

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	2026-05-18T01:23:23.842643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c17c8ef015fba373b04b60e9cce58d4da293bcd4e0ba3e7e0e08d331149a0ec1

Aliases

arxiv: 1507.03592 · arxiv_version: 1507.03592v3 · doi: 10.48550/arxiv.1507.03592 · pith_short_12: YF6I54AV7ORX · pith_short_16: YF6I54AV7ORXHMCL · pith_short_8: YF6I54AV

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/YF6I54AV7ORXHMCLMDU4ZZMNJW \
  | 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: c17c8ef015fba373b04b60e9cce58d4da293bcd4e0ba3e7e0e08d331149a0ec1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d97ded843c990525aa6d829c86f271641f536e2edfaad915d069ba697c855614",
    "cross_cats_sorted": [
      "gr-qc",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-07-13T20:00:43Z",
    "title_canon_sha256": "7c7a156e638cd29e3502468c6df03525ada41c3a2bbc7e0eef20c1e5429d228f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03592",
    "kind": "arxiv",
    "version": 3
  }
}