Pith Number

pith:QPRB5V7T

pith:2012:QPRB5V7TP4PVCLQWEEWK2C53PO

not attested not anchored not stored refs pending

NACO/SAM observations of sources at the Galactic Center

A. Alberdi, J. Sanchez-Bermudez, J.U. Pott, R. Schoedel

arxiv:1203.3702 v1 · 2012-03-16 · astro-ph.IM · astro-ph.GA · astro-ph.SR

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	2026-05-18T01:58:06.658393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e21ed7f37f1f512e16212cad0bbb7bb906ebbd8d2a98a6062c2d504c43f0f8

Aliases

arxiv: 1203.3702 · arxiv_version: 1203.3702v1 · doi: 10.48550/arxiv.1203.3702 · pith_short_12: QPRB5V7TP4PV · pith_short_16: QPRB5V7TP4PVCLQW · pith_short_8: QPRB5V7T

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/QPRB5V7TP4PVCLQWEEWK2C53PO \
  | 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: 83e21ed7f37f1f512e16212cad0bbb7bb906ebbd8d2a98a6062c2d504c43f0f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0aeda25fea5dfa95b69f0ec2df19ef2eeae1bb9cfda354d73a032d6e99598626",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-03-16T13:34:24Z",
    "title_canon_sha256": "a74e7a9613edd634d7f047595e62892960c330b237502a30b08892596f247063"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3702",
    "kind": "arxiv",
    "version": 1
  }
}