{
 "_meta": {
  "class": "deliberate_pair",
  "count": 11,
  "note": "Two pieces carrying the SAME one-off anomaly (typo, file, effect, statement). Each pair's shared defect appears on exactly these two pieces in 512. Exactly 11 pairs; #175 sits in two."
 },
 "pairs": [
  {
   "id": "P01",
   "members": [
    14,
    75
   ],
   "reason": "Byte-identical GIF files: #14 displays #75's animation. The only exact-duplicate pair in all 512.",
   "evidence": "file bytes (dupscan / odd-file census)",
   "source": "D2 ratified"
  },
  {
   "id": "P02",
   "members": [
    479,
    480
   ],
   "reason": "The two held-frame pieces \u2014 one frame parked (delay) at f27 and f24 \u2014 and a shared one-off colour palette found nowhere else in the collection.",
   "evidence": "GIF delay tables + colour census",
   "source": "D2 ratified"
  },
  {
   "id": "P03",
   "members": [
    209,
    300
   ],
   "reason": "Solar skullGAN and Lunar skullGAN: day and night. The solstice drop's first and last pieces.",
   "evidence": "names + drop bounds",
   "source": "D2 ratified"
  },
  {
   "id": "P04",
   "members": [
    489,
    491
   ],
   "reason": "The scanline pair: both Frozen skullGANs share the scanline effect; #491 also carries the colour-speedup.",
   "evidence": "the collector's eye (D4 data update)",
   "source": "D2 ratified"
  },
  {
   "id": "P05",
   "members": [
    130,
    133
   ],
   "reason": "The same background flash \u2014 the background flips into sine waves on both. qubitGAN #130 and its echo #133.",
   "evidence": "the collector's colour-flash finds",
   "source": "D2 ratified"
  },
  {
   "id": "P06",
   "members": [
    165,
    207
   ],
   "reason": "The two hand-painted number carriers: #165 carries '81', #207 carries '4'. Confirmed but flagged 'suss \u2014 could be coincidence' by the collector.",
   "evidence": "painted-mark census (D15/D16)",
   "source": "D2 ratified (suss)"
  },
  {
   "id": "P07",
   "members": [
    363,
    473
   ],
   "reason": "Essences TRUE and FALSE \u2014 the only two, a matched statement. The collector's open idea: each may describe the piece's relationship to its own drop.",
   "evidence": "essence field",
   "source": "D2 ratified"
  },
  {
   "id": "P08",
   "members": [
    16,
    100
   ],
   "reason": "Both titles spell 'Primoridal' \u2014 Primordial with two letters transposed. The only two in all 512.",
   "evidence": "exact-case chain names",
   "source": "D2 ratified (byte-verified)"
  },
  {
   "id": "P09",
   "members": [
    175,
    205
   ],
   "reason": "Both name suffixes are miscased 'Gan' instead of 'GAN' (skullGan / spookyGan). The only two in all 512; a cross-drop pair (robo + spooky).",
   "evidence": "exact-case chain names",
   "source": "D2 ratified"
  },
  {
   "id": "P10",
   "members": [
    9,
    73
   ],
   "reason": "Both Arweave filenames spell 'gltich' \u2014 Glitch with two letters transposed (009_s_silver_gltich.gif / 073_twin_gltich.gif). The only two in all 512. #73's Type field carries the same transposition ('Gltich').",
   "evidence": "Arweave filenames + chain Type field",
   "source": "NEW 2026-09-06 (swarm census, data-verified)"
  },
  {
   "id": "P11",
   "members": [
    170,
    175
   ],
   "reason": "Both SubTypes spell 'Raibow' \u2014 Rainbow missing its n. The only two in all 512. Note #175 also sits in pair P09 via its 'Gan' suffix.",
   "evidence": "chain SubType field",
   "source": "NEW 2026-09-06 (swarm census, data-verified)"
  }
 ]
}