Pith Number

pith:W5M574GP

pith:2014:W5M574GPQ4C4AX3GLBBXIDMMSH

not attested not anchored not stored refs pending

Three megahertz photon collection rate from an NV center with millisecond spin coherence

Daniel J. Twitchen, Dirk Englund, Edward H. Chen, Florian Dolde, Jiabao Zheng, Luozhou Li, Matthew L. Markham, Sara L. Mouradian, Sinan Karaveli, Tim Schr\"oder

arxiv:1409.3068 v1 · 2014-09-10 · physics.optics

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

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	2026-05-18T02:02:08.263213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b759dff0cf8705c05f665843740d8c91e5699adf0202cc7a47339fd89fc32e90

Aliases

arxiv: 1409.3068 · arxiv_version: 1409.3068v1 · doi: 10.48550/arxiv.1409.3068 · pith_short_12: W5M574GPQ4C4 · pith_short_16: W5M574GPQ4C4AX3G · pith_short_8: W5M574GP

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/W5M574GPQ4C4AX3GLBBXIDMMSH \
  | 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: b759dff0cf8705c05f665843740d8c91e5699adf0202cc7a47339fd89fc32e90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53ed7486ff84991f52a5bdb78c01500edbd18d826b3805514225c9ea1fd7f0d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-09-10T13:49:35Z",
    "title_canon_sha256": "43c0e0a5ffa53153123f919d26e0c563ef117d167d8b8b04f0a13fdeb1a538ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3068",
    "kind": "arxiv",
    "version": 1
  }
}