Pith Number

pith:AKBJ5BKP

pith:2013:AKBJ5BKPRDR7BWKT6S3RKYHNIY

not attested not anchored not stored refs pending

Electric Field Conjugation with the Project 1640 coronagraph

Anand Sivaramakrishnan, Ben R. Oppenheimer, Charles Beichman, Chengxing Zhai, Christoph Baranec, David Hale, Douglas Brenner, Emily Rice, Eric Cady, E. Robert Ligon, Fred Vescelus, Gautam Vasisht, Hong Tang, Ian Parry, Jennifer Roberts, J. Kent Wallace, Jr., Justin Crepp, Laurent Pueyo, Lewis C. Roberts, Lynne Hillenbrand, Michael Shao, Neil Zimmerman, Remi Soummer, Richard Dekany, Rick Burruss, Sasha Hinkley, Thomas Lockhart, Tuan Truong

arxiv:1309.6357 v1 · 2013-09-24 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AKBJ5BKPRDR7BWKT6S3RKYHNIY}

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	2026-05-18T01:47:27.082311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02829e854f88e3f0d953f4b71560ed460f02495b5fd142ab2634b54b182b83c9

Aliases

arxiv: 1309.6357 · arxiv_version: 1309.6357v1 · doi: 10.48550/arxiv.1309.6357 · pith_short_12: AKBJ5BKPRDR7 · pith_short_16: AKBJ5BKPRDR7BWKT · pith_short_8: AKBJ5BKP

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/AKBJ5BKPRDR7BWKT6S3RKYHNIY \
  | 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: 02829e854f88e3f0d953f4b71560ed460f02495b5fd142ab2634b54b182b83c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66967034fd2e07ba3b45436937c2a90f9a592a75d510c2eb2c855df374f20702",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-09-24T21:45:16Z",
    "title_canon_sha256": "6dd12eecb2e4a16b49e110230829fa70e77d2ce2a382fac074c931f9b4f6b132"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6357",
    "kind": "arxiv",
    "version": 1
  }
}