Pith Number

pith:ZP6EQSQI

pith:2020:ZP6EQSQIWT5L3CESMRROKEUCSA

not attested not anchored not stored refs pending

Light echos and coherent autocorrelations in a black hole spacetime

James M. Moran, Lindy Blackburn, Maciek Wielgus, Michael D. Johnson, Paul M. Chesler, Ramesh Narayan, Sheperd S. Doeleman

arxiv:2012.11778 v1 · 2020-12-22 · gr-qc · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZP6EQSQIWT5L3CESMRROKEUCSA}

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.

Cited by

1 paper in Pith

Detectability of secondary images from flares near Sgr A* with mock GRAVITY data

Receipt and verification

First computed	2026-07-05T02:47:03.292695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbfc484a08b4fabd88926462e5128290088e4480bafd90f6d4bac7f4c7d21a25

Aliases

arxiv: 2012.11778 · arxiv_version: 2012.11778v1 · doi: 10.48550/arxiv.2012.11778 · pith_short_12: ZP6EQSQIWT5L · pith_short_16: ZP6EQSQIWT5L3CES · pith_short_8: ZP6EQSQI

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/ZP6EQSQIWT5L3CESMRROKEUCSA \
  | 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: cbfc484a08b4fabd88926462e5128290088e4480bafd90f6d4bac7f4c7d21a25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c060f5d55bb4e4ac8656589a5c3afa385243b48dba7092836b132f388dfb6910",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-12-22T01:21:26Z",
    "title_canon_sha256": "65bcadb93fecc1f498f6213783bca38f262d064dfed2767789b8a80302574591"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.11778",
    "kind": "arxiv",
    "version": 1
  }
}